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- 15 Jan 2024, 11:36
- Forum: General Discussion (csf)
- Topic: unable to send/receive email in cpanel - SMTP error (504): authentication failed
- Replies: 0
- Views: 1429
unable to send/receive email in cpanel - SMTP error (504): authentication failed
I cant send Email in Roundcube webmail, when click to send I have this error: SMTP error (504): authentication failed I use CSF firewall and mail port is open. SMTP_ALLOWLOCAL is on, SMTP_BLOCK in on/off not defference, (I disable CSF but i have same error. Even if I remove CSF completely, the same ...