5 versions
Post SMTP Pro history.
Every release of Post SMTP Pro is archived here with its changelog, file size, and security scan result. Use the archive to roll back to a stable release or audit what changed between updates.
5 of 5 releases scanned clean
v1.5.5Latest
September 24, 20265.6 MBScanned
Improved
- Compatibility and verification with Post SMTP Core v4.0.2 and WordPress 7.1.
Fixed
- Resolved duplicate and infinite log generation during fallback mailer failures.
- Corrected open tracking status indicators between primary and fallback mailer entries.
- Ensured attachments are properly recorded in email logs when routed through fallback mailers.
- Fixed UI alignment issues in the Bulk Resend popup.
August 24, 20265.6 MBScanned
Improved
- Added compatibility with WordPress 7.1.
- Updated translation strings for the latest version.
- Enhanced Google One Click middleware for failed notification emails.
Fixed
- Resolved a fatal error in the Microsoft 365 extension related to token caching (`WP_Error` handling).
- Fixed newsletter email rendering issues when sent through the Microsoft 365 API.
- Resolved an issue where OAuth callbacks were hijacked during Office 365 Authentication.
- Fixed email sending compatibility issues with FluentCRMpro.
- Resolved an issue where email logs were missing for certain periods.
- Fixed Google Auth interception for RexTheme Product Feed Manager.
v1.5.2Unavailable
April 7, 20265.6 MBScanned
v1.5.1Unavailable
March 22, 20265.6 MBScanned
Fixed
- – Post SMTP <= 3.8.0 – Missing authorization for Authenticated (Subscriber+) Office 365 OAuth configuration overwrite.
- – Resolved REST error: {"code":"rest_cookie_invalid_nonce","message":"Cookie check failed","data":{"status":403}}.
Why archive
Sometimes the latest release isn't the one you need. The archive lets you pin Post SMTP Pro to a known-good version, or roll back while a bug is investigated. Every release stays scanned and reachable.