I found a rejection based on vhxtdQ.sigs.InterServer.net.SHA256.21881
in my mail.log and wanted to check what the signature searches for.

So I took out ye olde sigtool - and failed:

# /usr/local/bin/sigtool --find-sigs vhxtdQ.sigs.InterServer.net.SHA256.21881 | 
/usr/local/bin/sigtool --decode-sigs
ERROR: decodesig: Invalid or not supported signature format
TOKENS COUNT: 3

# /usr/local/bin/sigtool --find-sigs vhxtdQ.sigs.InterServer.net.SHA256.21881
[interserver256.hdb] 
90cdaf487716184e4034000935c605d1633926d348116d198f355a98b8c6cd21:17174:vhxtdQ.sigs.InterServer.net.SHA256.21881

The source of which is:
https://rbldata.interserver.net/interserver256.hdb

looking at that file I realised that these signatures ar merely SHA256
checksums, so there's not much to decode. But should sigtool --decode-sigs 
really throw an error in that case?

I'm using the official deb packages from clamav.net:

# dpkg -l |fgrep clam
ii  clamav   1.2.0-1   amd64   ClamAV open source email, web, and end-point 
anti-virus toolkit.


-- 
Ralf Hildebrandt
Charité - Universitätsmedizin Berlin
Geschäftsbereich IT | Abteilung Netz | Netzwerk-Administration
Invalidenstraße 120/121 | D-10115 Berlin

Tel. +49 30 450 570 155
ralf.hildebra...@charite.de
https://www.charite.de
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