I have a customer that is getting the following error when he sends us an email:
A message that you sent could not be delivered to one or more of its
recipients. This is a permanent error. The following address(es) failed:
The mail server could not deliver mail to
firstname.lastname@example.org. The account or domain may not exist, they
may be blacklisted, or missing the proper dns entries.
I ran a test from dnsright.com on the email address, see below.
Results from Test Email Address:
You entered: email@example.com
Testing SMTP Server: 18.104.22.168220 impinc02.yourhostingaccount.com NO UCE ESMTP server ready
ehlo DNSRight.com250-impinc02.yourhostingaccount.com hello [22.214.171.124], pleased to meet you
mail from:250 2.1.0 sender ok
rcpt to:250 2.1.5 recipient ok
221 2.0.0 impinc02.yourhostingaccount.com NO UCE closing connection
Got 250 response, 126.96.36.199 is accepting email got the domain carmichaelengineering.com.
The address is not blacklisted and I can't find any problems with my DNS entries. Can anyone please give me some insight on what I can do to fix this problem even if it is not on my end.