I've gotten this error:
2017-05-05 03:16:52.533029500 spamdyke: DENIED_SENDER_NO_MX from:
quinn[@]strangecode[.]com origin_ip: 18.104.22.168 origin_rdns:
o1678972x110.outbound-mail.sendgrid.net auth: (unknown) encryption: TLS reason:
Indeed, "tz.changeyourflight.com" has no MX records.
I have tried to apply a custom setting for this sender's IP address by adding a
config file at:
Then restarting qmail smtp with `qmailctl restart`.
I've used this method successfully in the past for `reject-empty-rdns=0` and
`reject-unresolvable-rdns=0`. However, it's not working for the
DENIED_SENDER_NO_MX error. The sending error continues to occur.
Have I set this up wrong?
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