It’s a random issue and it does not seem related to the IMAP provider: I have several email accounts, all of them are mapped on IMAP. Every time I send an email I have to double check the Draft folder as more often than I’d like to say, my emails are stuck there until I open the email from the Draft folder and hit Send again.
This happens with my Google account, GSuite account and other accounts I am not sure you are bothered with (I’m in italy and use a certified email protocol called PEC for communication with my town/services/gov services).
The issue happens a lot more often when my email has attachments (usually pdf), but that’s the only thing I can notice
This happens to me all the time, without any indication that the email has not been sent. I have had several important emails not go through without me noticing for days. It does not matter if it is a reply to an email chain or a new email. It is not consistent whatsoever, as far as I can tell. The last time it happened was to an Outlook account, but I think it affects my Gmail accounts, too.
OS and Version: Manjaro 22.1.0
Installation Method: Arch Linux AUR (using the yay AUR helper)
Mailspring Version: 1.10.8
June 2024, having the same issue on Pop!_OS 22.04 for several years. I missed sending couple very important mails to a point where I use Mailspring only for reading.
FWIW, I see the same behavior. It’s a crap shoot of whether hitting send will actually cause an email to be send, or if it just languishes in drafts. I’m running on Ubuntu 24.04, with a Google Workspace email account.
A simple notification popping up, saying “Send failed”, would relieve a lot of stress around this.
