Is relay supported by sending domain?

[SKJoy]

This is not a issue/bug report. Just didn't know where to ask about it.

Question: Is there a way to relay SMTP through external SMTP servers depending on the sending domain hosted with MailU?

Case: I have three domains hosted with MailU; DOMAIN_A, DOMAIN_B & DOMAIN_C. I also have two external SMTP relay servers; RELAY_A & RELAY_B. Now I want MailU to send mails from *@DOMAIN_A through external SMTP RELAY_A, from *@DOMAIN_B through external SMTP RELAY_B; and rest of the outgoing emails (*@DOMAIN_C) through it's own SMTP service.

Confusion: I have seen there is a domain based relay section in the management panel. But looks like that works depending on the target domain, like use an external SMTP relay server if the target email address belongs to GMAIL.COM or something like that. While I want this to happen depending on the sender domain.

Thanks in advance and needless to say, MailU is just GREAT :)

[medram]

I'm facing the same issue, have you found any solution?

[SKJoy]

Not yet :( And looks like this is a very solitary place!

[medram]

Anyway, just ensure to run this command after updating the mailu.env file to take effect:

docker-compose up -d