Yes it went. If it is a google or hotmail/outlook account the mail will appear in the web mail sent folder anyway and be duplicated by Thunderbird if the account is IMAP.

Thank you, appreciate the quick response.

Maybe I should bcc myself in the future for piece of mind that it went through?

Pyzel said

Thank you, appreciate the quick response. Maybe I should bcc myself in the future for piece of mind that it went through?

Your call. While this is a commonly raised issue, the cause is rarely Thunderbird. Unless your computer is really slow.

It is usually an anti virus scanning the sent folder that needs an exception to prevent it playing in the mail and imapmail folders of your Thunderbird profile while Thunderbird is running.

It might also be worth right clicking the sent folder selecting properties and checking the size on disk. Problems with anti virus, and at times Thunderbird processes, is sometimes the result of folders that have grown to multi-gigabytes in size. The time it takes things like anti virus to do their thing grows with the file sizes obviously.

We have used Thunderbird for about seven years. We had no problem saving to Sent until maybe two years ago. It has been difficult for too long. I keep thinking that Thunderbird will fix this problem in an upgrade, but it has not happened. Now today we can't make any message save to Sent at all. This today may be a Windstream issue, but the difficult saving is not Windstream as it is of two years duration.