Topic: MXToolbox saying May Be Open Relay
Using CentOS 6, IredMail 0.8.6
This is what MXToolbox reports when testing:
smtp mail.northstarhome.com SMTP Server Disconnected May be an open relay. More Info
with the following details:
Transcript: Connecting to 216.83.****
220 mail.northstar***.com ESMTP Postfix [668 ms]
250-AUTH PLAIN LOGIN
250 DSN [639 ms]
MAIL FROM: <firstname.lastname@example.org>
SendSMTPCommand: You hung up on us after we connected. Please whitelist us. (connection lost)
I have added the domain to the whitelist to no avail. I also found that any Yahoo address trying to send to this domain was throwing the same error. Adding Yahoo.com to the whitelist fixed the yahoo problem. Please advise? Thanks.
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