SMTP error 296 since 1.18

Description

Since the 1.18.x updates I am unable to send emails from my account. SMTP is giving the 296 error which was supposed to be fixed in 1.17.3 but for me is a new issue since 1.18.x versions. This is the error I get in SMTP log:

mailsmtp Last Error Code: 296
mailsmtp Last Error Explanation: Unknown
mailsmtp Last Error Location: 10
mailsmtp Last Auth Type: 16

To Reproduce…

Steps to reproduce the behavior:

  1. Got o Add account
  2. Select normal IMAP setup
  3. Fill in all the details
  4. SMTP Authentication Error is shown but username/password is 100% correct

Expected Behavior

Be able to add IMAP account and send emails using SMTP. This particular account worked with Mailspring since forever and only recently the issue started. No changes on the email provider end.

Setup

  • OS and Version: Linux Nobara (Fedora 43)
    • Installation Method: Flatpak
  • Mailspring Version: 1.19.0-29769fad
  • Email provider: OVH

Update to the latest flatpak. Should be fixed with Fix SMTP login · flathub/com.getmailspring.Mailspring@6e7f0b2 · GitHub

Indeed it appears to be fixed! Thank you!