Outgoing Emails Delivered to Spam

[Dinesh]

Hi All,

I have installed and configured Proxmox Mail Gateway (PMG) for both incoming and outgoing email traffic.

Incoming emails are working fine. However, all outgoing emails sent to Gmail and Yahoo are being delivered to the Spam/Junk folder, even though:

• SPF: Pass
• DKIM: Pass
• DMARC: Pass
• Mail Tester: 10/10 score

Could you please guide me on what additional configurations or checks should be performed on the PMG, sending mail server, DNS, or IP reputation to ensure that outgoing emails are delivered to the Inbox instead of Spam?

Any recommendations regarding PTR/rDNS, HELO/EHLO hostname, IP reputation, SMTP configuration, or Gmail/Yahoo-specific requirements would be greatly appreciated.

Thank you in advance for your guidance.

 

[mfederanko]

Both your mail servers are listed on UCEPROTECTL3, I'd try to get delisted there and check your sending behavior.