I've had an interesting time fo far today since I realised that I had an empty Inbox this morning. This is Debian Lenny with Postfix/Amavis Investigation revealed the following: Jul 28 06:30:31 vs1 amavis[5509]: (05509-11) (!)ClamAV-clamd: Can't connect to UNIX socket /var/run/clamav/clamd.ctl: 2, retrying (2) Jul 28 06:30:31 vs1 amavis[5505]: (05505-11) (!)ClamAV-clamd: Can't connect to UNIX socket /var/run/clamav/clamd.ctl: 2, retrying (2) Jul 28 06:30:37 vs1 amavis[5509]: (05509-11) (!!)ClamAV-clamd av-scanner FAILED: run_av error: Too many retries to talk to /var/run/clamav/clamd.ctl (Can't con$ Jul 28 06:30:37 vs1 amavis[5509]: (05509-11) (!!)WARN: all primary virus scanners failed, considering backups Jul 28 06:30:37 vs1 amavis[5509]: (05509-11) (!!)ClamAV-clamscan av-scanner FAILED: /usr/bin/clamscan DIED on signal 11 (000b) at (eval 88) line 527. Jul 28 06:30:37 vs1 kernel: [24637.644098] clamscan[5963]: segfault at 1 ip b753ba17 sp bfff4018 error 4 in libc-2.7.so[b74c5000+158000] Jul 28 06:30:37 vs1 amavis[5509]: (05509-11) (!!)TROUBLE in check_mail: virus_scan FAILED: virus_scan: ALL VIRUS SCANNERS FAILED: ClamAV-clamd av-scanner FAILE$ Jul 28 06:30:37 vs1 amavis[5509]: (05509-11) (!)PRESERVING EVIDENCE in /var/lib/amavis/tmp/amavis-20100728T063030-05509 The solution was to upgrade clamav-daemon which I did from the lenny/volatile repositories. All the held e-mails have now come rushing through. I'm not sure what triggered this problem, because I've not been tinkering with the server for a while now? Regards, Martin