I do not receive emails from senders with an email address of the form <name>@btinternet.com
An example of the sender's failure report is:
Reporting-MTA: dns; sa-prd-fep-040.btmx-prd.synchronoss.net
Arrival-Date: Wed, 27 May 2020 18:31:52 +0100
Received-From-MTA: dns; sa-prd-rgout-001.btmx-prd.synchronoss.net (10.2.38.4)
Final-Recipient: RFC822; <aaa@xxxxxxx.uk>
Action: failed
Status: 4.4.7
Remote-MTA: dns; xxxxxxx.uk
Diagnostic-Code: smtp; 250 2.1.5 Ok
My email server sees the BT mail server connect, but does not receive any data:
2020-06-09T12:04:00+01:00 <myserver> postfix/smtpd[7356]: connect from mailomta12-sa.btinternet.com[213.120.69.18]
2020-06-09T12:04:01+01:00 <myserver> postfix/smtpd[7356]: Anonymous TLS connection established from mailomta12-sa.btinternet.com[213.120.69.18]: TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)
2020-06-09T12:04:01+01:00 <myserver> postfix/smtpd[7356]: A33018C5A8C: client=mailomta12-sa.btinternet.com[213.120.69.18]
2020-06-09T12:09:01+01:00 <myserver> postfix/smtpd[7356]: timeout after DATA (0 bytes) from mailomta12-sa.btinternet.com[213.120.69.18]
2020-06-09T12:09:02+01:00 <myserver> postfix/smtpd[7356]: disconnect from mailomta12-sa.btinternet.com[213.120.69.18] ehlo=2 starttls=1 mail=1 rcpt=1 data=0/1 commands=5/6
Is this a problem at the BT end, or my end?
If it is at my end, can anyone suggest what I should do to fix it.
Thanks for your help
I can receive emails from other domains without a problem.
