smtp custom

  1. HugoWiff

    Issues with Custom SMTP Sever

    Custom SMTP Server with Google Workspace stopped working for us about a week ago, I have double checked that the credentials are correct but I am receiving the error message '5.7.8 Username and Password not accepted. Learn more at 5.7.8 https://support.google.com/mail/?p=BadCredentials...

  2. Custom SMTP Server connection error

    Hi all, I have this issue testing the SMTP server I added in 3CX. Please see the error. This was working before but we recently migrated our mail hosting server and in this new server the SSL Certificate is the free one from Lets Encrypt. This might be the issue and I wanted to try a none...

  3. Can't configure custom smtp on OVH - Entreprise licence

    Hey guys, We just bought an enterprise licence and im running on from OVH. I can't set-up my custom SMTP server, it gives me a timeout error on port 25 and a very long error when i activate SSL: MailKit.Net.Smtp.SmtpCommandException: 5.7.1 Mail from 66.70.186.206 has been blocked by Trend...
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