3.1.1 – Feb 11, 2025

• Fix: Raw HTML was sent when resending emails from the log section.
• Fix: AJAX error with some Form plugins.

3.1.0 – Feb 10, 2025

• New: Added SendGrid EU support.
• Optimization: Improved email reporting.
• Fix: Translation warning was appearing in some cases.
• Fix: Security enhancement.
• Fix: Prevent From Name was not working, if Prevent From Email was not enabled.
• Fix: Send Test was not appearing in Log Only mode.

3.0.2 – Jan 27, 2025

• Updated: Feedback SDK to the latest version.

3.0.1 – Jan 14, 2025

• Fix: Fixed the UI conflict.
• Fix: Fixed MySQL warning.
• Fix: Translation warning fixed.

3.0.0 – Jan 07, 2025

• New: Introduced all New Post SMTP Dashboard for users’ ease.
• New: Introduced new SMTP socket SMTP2GO.
• New: Introduced new Send Mail user interface.
• New: Introduced Webhook, so you can add Webhook URL to get notified when an email is failed.

2.9.14 – December 18, 2024

• Tweak – WordPress 6.7 Transalation compatibility added.

2.9.13 – December 10, 2024

• Fix – Users were unable to regenerate Mobile App QR code in admin view.
• Tweak – WordPress 6.7 Transalation compatibility added.

2.9.12 – December 02, 2024

• Enhancement – Regenerate QR Code Mobile Applicaion security enhancement in admin view reported by Patchstack.

2.9.11 – November 21, 2024

• Updated: Feedback SDK to the latest version.
• Tweak: Failed email notification typo fixed.

2.9.10 – November 19, 2024

• Email logs search security enhancement in admin view reported by Patchstack

2.9.9 – October 01, 2024

• Tweak: Typo fixes.
• Tweak: Improved user interface in wizard.
• Fix: PHP deprecated warning on 8.x.
• Fix: Emails count was not accurate in Weekly email in some cases.

2.9.8 – August 21, 2024

• New: Added SendGrid EU support.
• New: Added pre_wp_mail filter.
• Tweak: Sometimes Post SMTP was not detecting Post SMTP Pro.
• Updated: Feedback SDK to the latest version.
• Fix – Mailjet – Reply-To email was not working properly.

2.9.7 – July 01, 2024

• Fix: Logs filter was not working in Post SMTP Mobile Application

2.9.6 2024-06-27

• Tweak – Some strings were not translatable.
• Fix – Compatibility added for old PHP Versions.
• Fix – Notice: Only variables should be passed by reference.

2.9.5 – 2024-06-25

• Added: New Successful, Failed, and All email filter on email logs.
• Added: Option to print email.
• Updated: The user interface of settings tabs

2.9.4 – 2024-05-29

• Security Improvement: Sanitized SQL queries suggested by Wordfence team.

2.9.3 – 2024-05-22

• IMPROVEMENT – Email health report settings and template UI
• FIX – Remove false email delivery count from the WordPress dashboard.

2.9.2 – 2024-05-13

• NEW – Added new filter post_smtp_postmark_content for developers ease.
• UPDATED – Google Client SDK to latest version.
• IMPROVEMENT – Site URL was missing in Post SMTP Chrome Extension.

2.9.1 – 2024-04-22

• Bug Fix: error appearing “syntax error, unexpected ‘)'”.

2.9.0 – 2024-04-16

• New – Added email health report
• New – Added new socket/ email service SendPulse
• Fix – AJAX call was being interrupted by register_setting when specific plugins were activated.

2.8.13 – 2024-03-26

• FIXED: Reverted last fix as it was conflicting in some cases.

2.8.12 – 2024-03-26

• FIXED: AJAX call was being interrupted by register_setting when specific plugins were activated.

2.8.11 – 2024-01-19

• Added link to the new POST SMTP app for iOS released.

2.8.10 – 2024-01-18

• Security Improvement: Added check to automatically remove any connected device with incomplete information.

2.8.9 – 2024-01-11

• Added compatibility for InstaWP

2.8.8 – 2024-01-01

• Improvement: Added sanitization and escape functions in POST SMTP Mobile App QR code scanning window.

2.8.7 – 2023-12-20

• Improvement – added sanitization where missing to improve security
• Improvement – added nonce where missing to improve security

2.8.6 – 2023-12-07

• Improvement – Changed banner placement for NEW mobile app for POST SMTP to improve UX.
• Improvement – Tweaked dashboard UI for better usability.

2.8.5 – 2023-11-23

• Fix: In some cases, there was an issue disconnecting mobile application.

2.8.4 – 2023-11-20

• Fix: From name and emails, prevention settings were not being saved correctly in some cases in the new wizard.
• Fix: In some sockets, the API keys getting saved were encoded in multiple layers.

2.8.3 – 2023-11-17

• Fix – Getting error when saving settings in some scenarios.
• Improvement – Optimized QR code scanning module for Post SMTP mobile app to avoid any scanning delays

2.8.2 – 2023-11-14

• Improvement – PHP < 7.3 compatibility added.

2.8.1 – 2023-11-13

• Fix – Other SMTP option in the wizard was not saving the settings correctly.

2.8.0 – 2023-11-13

• NEW – Introducing a NEW 3-step wizard to speed up the initial setup.
• NEW – Added documentation within the wizard to ease out the setup
• NEW – Added new socket/email service for Mailjet
• NEW – Added support for default socket within wizard (you can use this option in case you want to use the logs functionality only)
• Fix – Updated the error string as reported by @interaptivre

2.7.2 – 2023-11-01

• Improvement – Mobile App banner improvement.

2.7.1 – 2023-11-01

• NEW – Show Mobile App Notice on Post SMTP dashboard
• Improvement – Improved SQL query to meet latest security standards
• Improvement – Added patch to avoid script execution in log content.

2.7.0 – 2023-10-26

• NEW – Added support for POST SMTP app. Visit documentation for more information
• Fix – Raw HTML was sent when using ElasticEmail service.
• Fix – Raw HTML was sent when resending emails from the log section.

2.6.2 – 2023-10-19

• Tested up to WordPress v6.3.2

2.6.1 – 2023-10-03

• Fix: Removed broken link from test email.
• Improvement: Improved SQL query to meet latest security standards.
• Improvement: Replaced sanitize_text_field() with intval() as suggested by WP Scan team.

2.6.0 – 2023-09-12

NEW

• Elastic mail socket added
• When resetting the plugin settings, the user can check to preserve logs from getting removed
• MainWP integration added. How-to instructions will be available publicly soon.

FIX

• When using PHPMailer, the failed email log was not creating

IMPROVEMENT

• Now, users can skip the banner from the dashboard.

2.5.9.4 – 2023-08-29

• API endpoint “SendinBlue” has been updated to “Brevo”

2.5.9.3 – 2023-08-17

• Minor Tweaks

2.5.9.2 – 2023-08-16

• Compatible & Tested up to WordPress v6.3

2.5.9.1

NEW

• Added option to refresh recent logs in the dashboard without loading the page.
• Added new hooks in the code to make the functionality extendable.

2.5.9 – 2023-07-18

IMPROVEMENTS

• Improved email log popup content

FIX

• Reverted support for HTML view in email content popup with proper checks to avoid CSS conflicts.

NEW

• Added new filter post_smtp_before_view_log to extend log section view.

2.5.8 – 2023-07-11

IMPROVEMENTS

• Added function to escape backend email content popup HTML.
• Added Failed/success labels for better visibility.
• Displayed error message on hover and in the popup to simplify the interface and UX in the log section.
• Updated Feedback SDK to the latest version

FIXES

• Fix: Pagination was getting reset on resending emails.

2.5.7 – 2023-06-21

IMPROVEMENTS

• Enhance code quality and strengthen security measures.

2.5.6 – 2023-06-08

FIXES

• Critical error was being thrown when reseting the plugin.

2.5.5 – 2023-05-29

FIXES

• Some of logs were overriding log page CSS.

IMPROVEMENTS

• Added title on log status for better user experience.
• Translation string improvement.

2.5.4 – 2023-05-24

FIXES

• Logs were not created in some cases.

2.5.3 2023-05-16

FIXES

• Fixed E_WARNING appearing on activation in some cases.

2.5.2 – 2023-05-12

FIXES

• Fixed the issue where users were getting stuck in the initial migration stage.

IMPROVEMENTS

• On completing the migration process, limit the notice to the logs section only to delete old logs.
• Added an option to disable migration notifications for seven days on clicking the cross icon on notice.
• Added a new feature that allows users to revert a migration. This way, they can retry the migration process or switch back to the old logs interface if required.
• Added an option to skip the migration process for those who do not wish to transfer their old logs and want to switch to the new interface.
• Added permission check before creating/writing error log during migration.

2.5.1 – 2023-05-10

NEW

• Added a link to learn more about migration.
• Added a condition to initiate the migration and logging only if the new custom table exists.

IMPROVEMENTS

• Improved database migration process to handle potential failures.

2.5.0 – 2023-05-09

NEW

• Introducing a new log section that is both lightweight and optimized, capable of accommodating millions of entries.
• Added a migration wizard to help move existing logs to new custom tables from the old version.

2.4.9 – 2023-04-27

FIXES

• Uncaught Error: Cannot use object of type WP_Error as array
• Fixed deprecation notice for PHP Version > 8.0

IMPROVEMENTS

• Added condition for notice on how to fix broken emails

2.4.8 – 2023-04-17

Bug Fix

• Fixed deprecated functions on Php 8.x

2.4.7 – 2023-04-10

Improvements

• Updated feedback SDK to latest version
• Added PHP 8.1 compatibility

2.4.6 – 2023-03-27

Bug Fixes

• Added new option in the settings to fix broken emails.

2.4.5 – 2023-03-14

Bug Fixes

• Reverted the fix to support minor PHP versions, impacting some other PHP versions.
• NEW Filter post_smtp_incompatible_php added to fix the compatibility of minor PHP versions.

2.4.4 – 2023-03-08

Bug Fixes

• Resolved an issue where warnings were generated due to an array to string conversion.
• Fixed a problem where CC and BCC recipients were not properly added when using SendInBlue.
• Addressed an issue where multiple recipients using SendInBlue were receiving emails individually instead of as a group.
• Fixed an email formatting issue that occurred in certain PHP versions.
• Corrected an issue where the friendly name feature was not functioning properly with SendInBlue.

2.4.3 – 2023-02-27

Bug Fixes

• Fix – Code 400 error appearing in some cases for SendGrid with cc headers

2.4.2 – 2023-02-24

Bug Fixes

• Email header request issue fixed for MailGun
• Email attachment issue is fixed in SendGrid

2.4.1 – 2023-02-22

Bug Fixes

• Fixed parse error on Php 7.2

2.4 – 2023-02-21

Improvements

• Replaced Mandrill SDK with Endpoints
• Replaced SendGrid SDK with Endpoints

2.3.2 – 2023-01-06

Bug Fixes

• Fixed error related to Reply-To appearing in some cases.

2.3.1 – 2023-01-05

Bug Fixes

• Fixed issues appearing in PostmanLogFields.php
• Emails were getting broken in some cases

2.3 – 2023-01-03

Bug Fixes

• PHP errors appear in ajax requests in some cases.
• Fixed comma breaking the From name in the log section
• Reply-to Header not being added in some instances (Reported by @pierrehooker)

Improvements

• Updated sender header as per RFC-2822
• Added PHP 8 Compatibility
• Updated Google API SDK
• Replaced MailGun SDK with endpoints
• Replaced SendInBlue SDK with Endpoints

2.2.3 – 2022-12-27

FIX

• Bug Fix – Support menu was disappearing in some cases

2.2.2 – 2022-12-19

FIX

• SendGrid was missing on wizard
• PHP Warnings

2.2.1 – 2022-12-13

FIX

• Email template HTML was broken

2.2 – 2022-12-08

• NEW
• Added New Socket/ Email Service Postmark
• Added New Socket/ Email Service SparkPost
• IMPROVEMENTS
• SSRF Prevention
• SQL Warning Removed
• MailGun SDK Updated to Latest Version
• Compatibility with BackupBuddy added
• FIXES
• Multisite Plugin Update
• Additional Headers were not saved properly in some cases
• Import Button was not working in some cases

2.1.10 – 2022-10-10

• FIXES
• Avoid redirection to wizard on activation
• Issue in resend emails
• Made backend setting fields visible
• IMPROVEMENTS
• Email host message
• Sendgrid message id to prevent spam emails

2.1.9 – 2022-09-9

• FIX
• User Compatibility Fix
• Unauthorized error on wizard

2.1.8 – 2022-09-5

• FIX
• Php warnings

2.1.7 – 2022-08-30

• FIX
• Server side request forgery

2.1.6 – 2022-08-29

• FIX
• Server side request forgery

2.1.5 – 2022-08-25

• FIX
• Updated email header to prevent email from being SPAM

2.1.4 – 2022-08-18

• NEW
• Redirect the user to the setup wizard on activating the Plugin
• Added action hook, “post_smtp_before_reset_plugin” to add an event before resetting plugin
• Added action hook, “post_smtp_after_reset_plugin” to add an event after resetting plugin

• Added notice to Grant Access after getting done with the wizard step to improve the UX

• FIXES

• Tweaks for PHP Version 8+ compatibility
• Freemius Language FIX
• Security Fix to avoid XSS from admin settings
• Mailster support updated for the latest version (thanks to @evrpress)
• Typo fix: defualt to default (thanks to @jsilvermist)
• Updated email header to prevent email from being SPAM

2.1.3- 2022-07-1

• FIX
• PHP Version Compatibility.

2.1.2- 2022-06-30

• NEW
• Integrated SDK for Feedback and support.

• Added “Start wizard” button in setup notification to optimize UX for the end-user.

• Improved
  Removed unused code

• FIX
  Less secure App Banner appearing in non-appropriate cases

2.1.1.1 – 2022-06-15

• FIX
• Sendinblue email header

2.1.1 – 2022-06-09

• FIX
• PHP Version Compatibility.

2.1 – 2022-06-09

• NEW
• All New UI
• Sendinblue API Integration

2.0.27 – 2022-05-19

Add notice about Google Less Secure App.

2.0.26 – 2022-04-22

• Bug Fixes

• Email header was broken in some cases.

• Improvements

• Minor UI improvement.
• llc Hostname added in ZendMail.

2.0.25 – 2022-04-06

• Bug Fixes
• WP 5.9 Compatibility Ballon UI issue.
• Uncaught Error: Class PostmanAdminController not found.

• Ajax error appearing due to Google API depreciated function.

• Improvements

• Code Optimization.
• MIME version added to test mails to prevent emails from spam.
• NEW Filter postman_test_email_args added to modify test email arguments.
• NEW Action wp_mail_succeeded added to exectue on every success email delivery.

= 2.0.24 – 2022-02-13
* Update: THE FUTURE OF Post SMTP – https://postmansmtp.com/the-future-of-post-smtp/

= 2.0.23 – 2021-04-22
* Fixed: WP_Scripts::localize called incorrectly message.

= 2.0.22 – 2021-02-14
* Update: Chrome extension URL change
* Fixed: Double save when extension save to option

= 2.0.21 – 2021-02-11
* Fixed: Security issue – nonce validation.
* Fixed: Class PostmanViewController not found
* New: New wp-config.php constant to disable the email logger = POST_SMTP_CORE_MAIL_LOG.

= 2.0.20 – 2021-01-19
* Fixed: All reported office 365 issues.
* New: Add link to Amazon SES Extension

= 2.0.19 – 2021-01-19
* Fixed: All reported office 365 issues.
* New: Add link to Amazon SES Extension

= 2.0.18 – 2021-01-17
* New: Plugin Extensions

= 2.0.16 – 2020-12-13
* Update: General Info

= 2.0.15 – 2020-08-12
* Fixed: WordPress 5.5 compatibility (stable)

= 2.0.14 – 2020-08-11
* Removed: WordPress 5.5 compatibility (bug)

= 2.0.13 – 2020-08-11
* Fixed: WordPress 5.5 compatibility
* Fixed: Email log filtering
* Fixed: Pushover notifications
* New: Suggest solution for email delivery errors

= 2.0.12 – 2020-05-18
* Updated: Readme file info

= 2.0.11 – 2020-02-25
* Fixed: Slack notifications

= 2.0.10 – 2020-01-21
* Fixed: HTML content type
* Fixed: Sendgrid crash when has duplicates recipients (bypass, Sendgrid issue).
* Fixed: Few OAuth undefined notifications
* Fixed: Duplicate Emails – When you have notify and confirm (Ninja forms, etc..)
* Fixed: Logs wp_error convert

= 2.0.9 – 2020-01-13
* Fixed: Notify on error bug – crash site
* Fixed: From header

= 2.0.8 – 2020-01-12
* Updated: Reply-To header bug

= 2.0.7 – 2020-01-12
* Updated: Improve PHPMailer method.
* Updated: Bug fixes.

= 2.0.6 – 2019-10-08
* Updated: Bug fixes.

= 2.0.5 – 2019-09-26
* New: You can now export logs to CSV.
* Updated: Few notifications errors, and minor improvements.

= 2.0.4 – 2019-08-27
* Updated: More security.

= 2.0.3 – 2019-08-21
* Fixed: A few security issues.

= 2.0.2 – 2019-05-19
* Fixed: Sendgrid code fix.
* Fixed: Default method (nothing configured) will use the default mail on the server and not SMTP.

= 2.0.1 – 2019-05-15
* New: Mailer Type – Added an option to send without overwrite the ‘wp_mail’ function, better compability to WordPress delivery. hopefully will be the default in the future.
* Updated: Sendgrid API was upgraded and rewritten to the new version.
* Fixed: Message-Id header was missing on SMTP
* Fixed: Email logger optimization – better query for large amount of records.
* Fixed: The localization was fixed to match translate.wordpress.org translation system ( Thanks to Niels de Blaauw from Level-Level ).
* Fixed: Code and optimization ( Thanks to Niels de Blaauw from Level-Level ).

= 1.9.8 – 2019-02-18
* New: a new from field to the fallback – Can’t trust the username as “from” value (email address).

= 1.9.7 – 2019-02-17
* New: Fallback Feature – Configure a backup SMTP when emails are failing.
* New: WordPress Multisite compability – with global settings.
* New: Email Log capability – give other user cheking the logs.
* Fixed: compatibility with mailster plugin
* Fixed: Mandrill exception bug – Thanks to Niels de Blaauw from Level-Level

= 1.9.6 – 2019-01-29
* Added support for our new chrome notification extension.
* few fixes

= 1.9.5 – 2018-10-02
* Added support for Mailgun Europe region.
* Replace “buggy” mime_content_type php function

= 1.9.4 – 2018-08-03
The most stupid idea ever remove (auto security select)

= 1.9.3 – 2018-07-26
Removed auto configure for port 25 (can be TLS)

= 1.9.2 – 2018-07-23
Removed deprecated functions from 7.2 + comment unready feature

= 1.9.1 – 2018-07-22
Syntx stupid mistake

= 1.9.0 – 2018-07-22
* Better support for secure delivery
* Support for constants auth (inside wp-config), check the detailes our Blog
* Automatic encryption select base on the port input – 25, 465, 587, 2525

= 1.8.9 – 2018-04-24
* Sendgrid bug

= 1.8.8 – 2018-04-24
* file added to svn – contactform7

= 1.8.6 – 2018-04-24
* Fix lockfile erros
* Contact form 7 integration
* PHP 5.6 requirement

= 1.8.5 – 2018-04-19
* Remove Beta Woocommerce integration
* Better check for WPML less then version 3.9

= 1.8.4 – 2018-04-18
* New: Multiple notification options to failed emails
* Upgrade: The Gmail code was upgraded and code change to support large attachments
* Add: Fix release lock file error
* Change: “Not configured…” message is now dismissible

= 1.8.3 – 2018-03-21
* Fix: SendGrid API Call Structure (The previous try didn’t work)

= 1.8.2 – 2018-03-21
* Fix: SendGrid API Call Structure

= 1.8.1 – 2018-03-20
* New: Sendgrid API & Client Version 6
* New: Add email log ‘send to’ column
* Fix: fallback emails on hosting require the ‘-f’ parameter
* Fix: Using hostname insted of an IP
* Fix: Remove mailgun test folder ( virustotal issue )
* Fix: Additional bugs collected from support tickets.
* Added: added filters to from_name and from_email filters (local connection)
* change hostname extrect logic

= 1.8 – 2017-12-24
* New: Mailgun API integration
* New: New filter controls
* New: WPML conflict fix
* Fix: Minor old bugs

1.7.10 – 2017-11-21

=
* Fixed: bug while detecting transcript error

= 1.7.9 – 2017-11-20
* Fixed: misspled false
* Fixed: feedback form
* Fixed: Some localization strings
* Removed: deprecated function
* New: Option to input emails when resend email
* Added: explain message on email log filter

= 1.7.8 – 2017-11-17
* = Menu Items grouping =
* Fixed: IP detection error in some web hosts
* Fixed: Link open in new page attribute = _blank
* Fixed: Replace deprecated PHP 7 functions.
* Updated: Validator TLD’s list
* Added: Email log date and search filter.
* Added: Alert on sending error (Fallback to local mail)
* Added: Email body preview (not raw)

= 1.7.7 – 2017-10-17
* Fixed: Error sending files with sendgrid
* Fixed: Wrong attachments format in Mandrill
* Fixed: Wrong Sender Header in Mandrill

= 1.7.6 – 2017-10-17
* Missing sendgrid files
* Fixed: Localization slug

1.7.5 – 2017-10-07

• Fixed: security issue (XSS)
• Fixed: Small bug with Google API

1.7.2 – 2015-11-08

• [Ticket] – v1.7 ignores the content-type header set in the Additional Headers. Fixed.
• [Ticket] – Fixed an issue where v1.7 admin screens crash for non-admin users when Post is not configured. Fixed a multiste issue where v1.7 site admins lose access to their Post settings screen. Special thank-you to Domi2015 for giving me access for testing! 🙂
• Localized jQuery Validation messages
• Localized MyMail messages
• Put the local translation files back, as WordPress on-line translations do not work as advertised

1.7.1 – 2015-11-05

• [Ticket] – the Optimizepress plugin calls wp_mail before the WordPress init hook, before Post is fully initialized, so I made a change to accomodate this behavior
• [Ticket] – v1.7 admin screen may become inaccessible after upgrading. Fixed.
• [Ticket] – v1.7 breaks compatibility with WordPress Leads. Fixed.

1.7.0 “Iliana” – 2015-11-03

• Happy Halowe’en! 30,000 installations! – 2015-10-31
• Integrated Mandrill API
• Integrated SendGrid API
• Language files have been removed from the plugin as translations are now performed on-line. If you are a non-English speaker please constribute!
• Post commandeers email when activated and sends using the WordPress default of localhost:25 – this is for people who want to use it to diagnose email problems without configuring SMTP
• Re-send failed e-mails from the Email Log screen
• Added an internal ‘manage_Post_smtp’ capability for advanced management with, for example, User Role Editor
• [Ticket][Ticket] Added an import/export tab to the Advanced Configuration screen for those who want to duplicate settings between sites.
• [Ticket] Added option to disable e-mail address validation
• [Ticket] Fix for fatal error when using a non-administrator in the admin menu.

1.6.24 – 2015-09-10

• 20,000 installations! – 2015-09-09
• Translated into Greek, thank-you Michael Kotsarinis!
• Diagnostic Test displays all the wp_mail-related hooks of active plugins and themes
• When validating e-mail addresses, Post will disclose which field has a validation issue in the error message
• Default log entries bumped from 10 to 250
• [Ticket] Added nasty fake input field hack to prevent browsers from autofilling username/password fields.
• [Ticket] Added a warning to the Email Log for emails that have an empty subject line
• [Ticket] Test Email detects Ajax errors and displays them in the Status window
• [Ticket] Removed the references to images in Post’s copy of jquery-ui.css causing HTTP 404
• [Ticket] Fixed an Ajax name collision with the plugin MemberPress
• [Ticket] Some sites can not handle International (UTF-8) characters in the Test Email. Fixed.
• [Ticket] Fix for PHP Notice: Undefined offset: 1 in Post-smtp/Post/Post-Mail/google-api-php-client-1.1.2/autoload.php on line 22
• [Ticket] Silenced PHP warnings in Zend_Mail from ini_set

1.6.23 – 2015-06-27

• 10,000 installations! – 2015-06-27
• 9,000 installations! – 2015-06-20
• [Ticket] Causes bbPress or Buddy Press to generate warning messages. Fixed.
• [Ticket] User reported error “Fatal error: Internal Zend error – Missing class information” – Whoops, used ‘require’ PostState.php instead of ‘require_once’ PostState.php which was causing errors. Fixed.
• [Ticket] [Ticket] MyMail Newsletter Plugin for WordPress refuses to use wp_mail. I don’t want to make this a habit, but I’ve integrated Post with MyMail’s proprietary delivery mechanism.
• [Ticket] Found an environment where the plugin’s call to new Exception was creating PHP Fatal errors. Fixed.
• [Ticket] Perform validation on all email headers before send