Rated 4 out of 5 stars

by ag on Oct. 2, 2026 ·

Nice plug-in, although I'd suggest to add a small button for "SEND NOW!" in order to skip the delayed sending time when necessary

Rated 5 out of 5 stars

by A C on Sept. 22, 2026 ·

Excellent, thank you, at long last we have an undo send facility for Thunderbird! A must-have for any email client. This add-on is simple and just works as expected.

by Edgar Robarts (Developer) on Sept. 22, 2026 ·

Thank you!