Outbound email relay Outbound email relay

Topic: Outbound email relay

Post Outbound email relay
by finen003 on Tuesday, December 11, 2018

Good morning,

I can't seem to get the outbound relay service to work. When I send an email through it, I get a bounce back from the dynu server stating:

"The mail system <finen003@gmail.com>: host relay.dynu.com[] said: 530 SMTP authentication is required. (in reply to RCPT TO command}"

So this makes me think I am not authenticated through dynu?

I do have /etc/postfix/sasl_password as:
[relay.dynu.com]:2525 relay@relay.finendale.com:Password

and I have main.cf containing:
smtp_sasl_auth_enable = yes
smtp_sasl_password_maps = hash: /etc/postfix/sasl_password
smtp_sasl_security_options = noanonymous

relayost = [relay.dynu.com]:2525
smtp_generic_maps = hash:/etc/postfix/generic

Am I missing something? Do I have the right ports called out? I am starting to get pretty frustrated in trying to set up this service so look forward to any help.

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Thursday, July 29, 2021 5:11 AM