On 08.07.21 18:48, [email protected] wrote:
I rarely bounced email due to RBLs from someone I actually correspond
with. However I did bounce a message with the sender receiving this
message:
Sorry, we were unable to deliver your message to the following
address.<[email protected]>
From the maillog:
Jul 7 16:35:21 example postfix/smtpd[27776]: NOQUEUE: reject: RCPT from
sonic301-25.consmr.mail.gq1.yahoo.com[98.137.64.151]: 554 5.7.1 Service
unavailable; Client host [98.137.64.151] blocked using cbl.abuseat.org;
from=<[email protected]> to=<[email protected]> proto=ESMTP
helo=<sonic301-25.consmr.mail.gq1.yahoo.com>
This is not a bounce, this is a rejection by your MTA, and sending MTA is
responsible for creating a bounce in this case.
Some MTAs are very shitty regarding to bounce creation, not providing full
messages.
Now you can use mxtoolbox to see that indeed 98.137.64.151 is blocked.
Same goes for sonic301-25.consmr.mail.gq1.yahoo.com. However the sender
doesn't know the FQDN nor the IP address their email server used.
Is there some flag I need to set to provide more information regarding
the 554 bounce? Preferably let the person know the RBL that caused it.
you can add info to reject messages by configuring e.g.:
smtpd_reject_footer_maps=regexp:/etc/postfix/reject_footes_maps
but nobody will guarantee that the sending MTA will put that info to a
bounce.
However, if it helps, please report this info so we know.
I remember M$IE used to provide own error message if the message from
server was smaller than 512B (and option "show friendly HTTP error messages"
was on), making error messages useless.
--
Matus UHLAR - fantomas, [email protected] ; http://www.fantomas.sk/
Warning: I wish NOT to receive e-mail advertising to this address.
Varovanie: na tuto adresu chcem NEDOSTAVAT akukolvek reklamnu postu.
Windows 2000: 640 MB ought to be enough for anybody
