Hello friends,
A govt mail sender is relaying mails through one of the servers
mail-vi1eur05on2047.outbound.protection.outlook.com or
mail-eopbgr1380070.outbound.protection.outlook.com or some similar sounding
server - but I am getting the error "Sender address rejected: Domain not
found exception" in my mail server.
I have checked this and the sender domain does not have a MX record.
This is a Govt Body and they are not responding to any mails we tried
through their abuse ID and their website etc.
We are desperate and so How do I whitelist this domain as an exception as
we desperately need the OTP mail sent by this Govt body.
The sender domain has - a special character as well in their domain like
abc-dfgh.co.in.
after googling I created a file called no_a_record.pcre with the following
contents.
smsupp...@abc-dfgh.co.in
/^.*abc-dfgh.co.in$/ OK
also added in main.cf. ...
smtpd_sender_restrictions =
check_sender_access hash:/etc/postfix/access,
pcre:/etc/postfix/no_a_record.pcre,
reject_unknown_sender_domain
however it is not working. Can someone please help.
Thanks
DP
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