• [Bug Fix] Adding mailing lists works again in the correct tabbed layout
• [Bug Fix] Adding users/groups from/to mailing lists works again
• [Bug Fix] Fix WordPress 5.5 incompatibilities (more specific problems with jQuery 1.9 version)
• [Bug Fix] Add missing UI icons
• [Bug Fix] Fix PHP warnings

• [Improvement] For sender control checking consider @GMAIL.COM and @GOOGLEMAIL.COM the same
• [Bug Fix] Fix WordPress 5.5. incompatibilites (adding/removing recipients possible, dropdown filter in archive working)

• [Bug Fix] Make plugin compatible with WordPress 5.5

• [Improvement] Support long passwords (limit is now 255 characters, and not 45 as it was)
• [Bug Fix] No shortcode execution in admin area (broke editing experience with Gutenberg editor)

• [Bug Fix] Avoid PHP warnings

• [Feature] Filters for modifying the welcome and goodbye email subject and contents (wpmailster_subsr_welcome_email_subject, wpmailster_subsr_welcome_email_body_html, wpmailster_subsr_welcome_email_body_alt, wpmailster_subsr_goodbye_email_subject, wpmailster_subsr_goodbye_email_body_html, wpmailster_subsr_goodbye_email_body_alt)
• [Feature] Introduce new text variables {orig_to} and {orig_cc} to include original TO and CC addressees in the email content (header or footer text)
• [Improvement] Do not execute plugin background actions during REST API requests (wp-json/wp/v2 endpoint)
• [Bug Fix] Send welcome message (when enabled) to all new users added through admin
• [Bug Fix] Display host name (and port) for server names in lists and dropdowns
• [Bug Fix] User name and description is pulled reliable for WP users
• [Bug Fix] Use display name instead of nice name

• [Improvement] For WP users, use user’s “nice name” if available
• [Bug Fix] Digest queue is emptied after successful digest sending

• [Improvement] Compatibility with WordPress 5.4
• [Bug Fix] Remove unneeded PHP warnings

WP Mailster v1.6.7 features important bug fixes.

WP Mailster v1.6.6 introduces a new feature for all pro editions