Please will someone kindly help me:
I inherited a couple of exim4 mail servers some years ago, and I do
plead guilty to an inadequate understanding of exim! I managed to
upgrade one of them to exim4.94 (dist-upgrade Debian 10 buster to Debian
11 bullseye) successfully, but have tried and failed twice already to
upgrade a slightly more complex server which, in addition to SPF and
DKIM, has DNSSEC and SRS... though I'm doubtful either of those is the
cause of the failure I'm experiencing with the following problem:
After upgrading this instance of exim I cannot send an email as an
authorised user to an outside domain. I get e.g:
2024-06-27 15:26:07 H=([192.168.1.55]) [165.165.192.254]
X=TLS1.3:ECDHE_X25519__RSA_PSS_RSAE_SHA256__AES_128_GCM:128 CV=no
F=<j...@test.domain.tld> rejected RCPT <em...@gmail.com>: relay not
permitted
I don't know how to debug this because, e.g. sudo exim -d -bt
em...@gmail.com doesn't fail as it's sending from localhost which is
fine. Whereas in the log snip above my private IP is somehow regarded as
the sending Host, via my provider's gateway IP; and is not permitting
relay for authorised users.
Please, how can I debug this? And/or where is the possible issue to be
found in the split config?
Is there any further info I should be providing?
Thank you.
Jeff
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