SMTP SSL Authentication issues with outlook 2007 (Plesk, using IMAP)

Some Outlook 2007 IMAP users have reported issues authenticating to our Plesk mail servers to send mail.

with an error: "This client does not support any of the authentication methods used by this server"

Here is a fix around this issue:

Display your account's outgoing mail (SMTP) settings in Outlook:

  • open Outlook

  • click on the Tools menu, then Account Settings
  • Select your email account, and under the Outgoing Server tab
  • leave My outgoing server (SMTP) Requires Authentication checked
  • change security to TLS (instead of SSL)
  • change port to 587 (instead of 25)

This will allow you to authenticate with our servers.


Properties ID: 000280   Views: 1252   Updated: 6 years ago