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- Tue Nov 12, 2019 5:58 pm
- Forum: MailEnable Professional Edition
- Topic: Authentication Blocking Outbound SMTP
- Replies: 1
- Views: 6419
I am getting a 503 error and mail is being stopped the outbound smtp server. I am trying to send mail out through any domain that I have and the test at mxtool box showed the following that made me think it is an AUTHENTICATION conflict. Does anyone have insight on what settings on the SMTP server? ...