Thunderbird Support Forum

Ever since the update to 115.8 I have not been able to send emails to a hospital since it Quaranteens emails at the server lever sent from thunderbird and they are not received by the recipient. I have downgraded to version 102.15.1 and the emails go through

Version 115 is absolutely horrid! I was surprised recently by an apparent automated update and it has thrown off my email routine enough to seriously consider changing clients. The user interface is unusable, folders are disappearing from view, and is aesthetically a mess. As a 10+ year user of Thunderbird, I'm going back to 91 or will find a new product...