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<p>I've been using <tt>amavis-new</tt> for a number of years as the
front end to Exim 4 very successfully but I've recently noted in
my Exim log that some messages are being "bounced" when Exim tries
to pass them to amavis-new. The log message is:</p>
<p><tt>utf8 support required but not offered for forwarding</tt></p>
<p>That log entry is of course coming from Exim, but the log entry
also makes it clear that this is occurring when the message is
being transferred to amavis for scanning, via the Exim router and
transport. I know - I've checked! - that Exim is offering UTF8
support but TELNETing to the loopback address on port 10024 on the
mail server shows that although amavis is offering 8-bit MIME
support, it doesn't mention UTF8 support. It could be that this
is a config problem that has always existed, and I've just not
noticed until now, or perhaps something has changed in Exim and/or
amavis. Either way, it means that valid messages are being
rejected.</p>
<p>In the short term, I'd like to fix this without turning off UTF8
support in Exim by setting <tt>smtputf8_advertise_hosts</tt> to
NULL but in the absence of an easy fix in the amavis config, I'm
happy to fall back to that, as I don't expect to receive (m)any
messages using UTF8. However, I can't track down any existing
useful advice about UTF8 support in amavis <i>(other than that
"It is best to run amavisd-new in a non-UTF8 locale
environment"! :-) )</i> so I'd appreciate suggestions. <br>
</p>
<p>Version in use is 2.8.1-11.1-x86_64... thanks.<br>
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