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Fatal error: wp_mail() before init crashes with "Call to a member function createMailEngine() on null"

Status: Open.

#151 In wpexpertsio/Post-SMTP;

· rulameven opened on Aug 17, 2026

Filename postman_resend_email_sript.js triggers a ClamAV/Sanesecurity false positive on every ZIP containing the plugin

Status: Open.

#150 In wpexpertsio/Post-SMTP;

· gseilheimer opened on Aug 16, 2026

Email log misses entries when two wp_mail() calls fire in quick succession within the same request (race condition)

Status: Open.

#149 In wpexpertsio/Post-SMTP;

· cpescha opened on Aug 13, 2026

Elastic Email failing with Missing required parameter - message (400) — Content-Type header missing in Handler

Status: Open.

#134 In wpexpertsio/Post-SMTP;

· dustingrof opened on May 22, 2026

After the last update there is some 302 redirection

Status: Open.

#133 In wpexpertsio/Post-SMTP;

· dusta opened on May 19, 2026

multipart/alternative end boundary is not stripped

Status: Open.

#129 In wpexpertsio/Post-SMTP;

· bgermann opened on Feb 4, 2026

Add Mailtrap mailer

Status: Open.

#128 In wpexpertsio/Post-SMTP;

· yanchuk opened on Oct 29, 2025

Creation of dynamic property PostmanGetDiagnosticsViaAjax::$cleanDiagnostics is deprecated in PHP 8.3

Status: Open.

#126 In wpexpertsio/Post-SMTP;

· dademaru opened on Jun 20, 2025

Null check needed for addCapability

Status: Open.

#123 In wpexpertsio/Post-SMTP;

· JoakimEwenson opened on Jun 16, 2025

Reply-To field not supported in PostmanSmtp2GoEngine

Status: Open.

#121 In wpexpertsio/Post-SMTP;

· vandevusse opened on Apr 16, 2025

Simply use !empty() instead of isset() && !empty()

Status: Open.

#116 In wpexpertsio/Post-SMTP;

· chludwig opened on Jan 14, 2025

Since WP 6.7 load_textdomain or load_textdomain_just_in_time was called incorrectly notices

Status: Open.

#115 In wpexpertsio/Post-SMTP;

· chludwig opened on Jan 14, 2025