On Fri, 18 Oct 2019, Ben Sanders via Exim-users wrote:
Hello all,
I've got a fully updated Exim smarthost (4.92.3) running on CentOS 7
- It accepts mail from trusted networks to send outbound messages,
no significant config changes from the defaults, all sending mail
perfectly fine.
Our much older version of exim on Debian behaves differently when
bouncing email however, it includes the full headers and message
body to all senders.
The newer version of exim on CentOS seems to treat local and remote
senders differently. If the sender is on a trusted network, bounces
only include the SMTP error section e.g:
" 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:
[email protected]
host example.tld [5.5.5.5]
SMTP error from remote mail server after RCPT TO:<[email protected] >:
550 No such person at this address
"
Even when explicitly setting the below defaults to true, the
messages headers and message body are missing from the bounce.
bounce_return_message = true
bounce_return_body = true
If the bounce returns to a local user however, I get the expected
output, the normal section above with the SMTP error WITH the
message header with message body.
Why is exim behaving different for local and remote email addresses,
is that expected?
Is there a way to ensure exim includes the message header and body
for all bounces it generates?
Are you using cut-through delivery ?
I wonder whether mail from trusted users is failing before the data
(headers and body) have been received, in which case they may not be
available when the bounce is generated ?
--
Andrew C. Aitchison Kendal, UK
[email protected]
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