Peter Ford writes:
I've been getting the dreaded 556 error occasionally for an address on our
server (sa...@justcroft.com), and I can't quite diagnose the problem.
The address points to a couriermlm list, and normally goes fine, then every
so
often the BSS kicks in and customers complain they can't reach the address -
it
is the main point of contact for most of our customers, so pretty critical
for
our business.
The problem is, I can't see any evidence of an error delivering to that
address
which might be sparking off the BSS. Given that it's a list, would a failed
delivery to one of the list addresses do that?
No, that would not be the reason.
To try and work around the problem and ensure that delivery still happens, I
have set
opt BOFHSUPPRESSBACKSCATTER=none
in bofh, although I stil have
ESMTP_BLOCKBACKSCATTER=smtp/dsn
in courierd - is that 'safe' (i.e. it won't get my server blacklisted...) ?
And will it switch off the 556 messages? That's how I read the manual, but I
might be wrong...
Cheers
Pete
--
Peter Ford, Developer phone: 01580 89 fax: 01580 893399
Justcroft International Ltd. www.justcroft.com
Justcroft House, High Street, Staplehurst, Kent TN12 0AH United Kingdom
Registered in England and Wales: 2297906
Registered office: Stag Gates House, 63/64 The Avenue, Southampton SO17 1XS
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