MailScanner chokes

[hermit921]

We are starting to see a problem on 1 or 2 of our three MailScanner systems 
where mail starts accumulating in the hold queue.  We tried various things, 
with little success.  Turning off spamassassin in MailScanner made no 
difference.  Stopping MailScanner and starting postfix, then doing 
postsuper -H ALL followed by postfix flush pushes out all the messages.  Of 
course this bypasses MailScanner.

In Debug mode, we get the following, which isn't much.  We waited several 
minutes and this output never changed.  Any ideas what is wrong?

hermit921


Starting MailScanner
<Ctrl> - C to stop tail of /var/log/mail

Initializing incoming postfixInitializing outgoing postfix
done
                                                                                              done
Initializing MailScanner
Jan 25 15:09:37 mail1 MailScanner[13530]: Config: calling custom end 
function MailWatchLogging
Jan 25 15:09:37 mail1 MailScanner[13353]: MailScanner child caught a SIGHUP
Jan 25 15:09:37 mail1 MailScanner[13353]: Config: calling custom end 
function MailWatchLogging
Jan 25 15:09:37 mail1 MailScanner[13305]: MailScanner child caught a SIGHUP
Jan 25 15:09:37 mail1 MailScanner[13305]: Config: calling custom end 
function MailWatchLogging
Jan 25 15:09:37 mail1 MailScanner[13130]: MailScanner child caught a SIGHUP
Jan 25 15:09:37 mail1 MailScanner[13130]: Config: calling custom end 
function MailWatchLogging
Jan 25 15:09:47 mail1 postfix/postfix-script: starting the Postfix mail system
Jan 25 15:09:47 mail1 postfix/master[13744]: daemon started -- version 2.1.1
In Debugging mode, not forking...
Jan 25 15:09:48 mail1 MailScanner[13770]: MailScanner E-Mail Virus Scanner 
version 4.48.4 starting...
Jan 25 15:09:48 mail1 MailScanner[13770]: Read 699 hostnames from the 
phishing whitelist
Jan 25 15:09:48 mail1 MailScanner[13770]: Config: calling custom init 
function MailWatchLogging
Jan 25 15:09:48 mail1 MailScanner[13770]: Started SQL Logging child

= = = = = = = = = = = = = = = = = = = = =
MailScanner version info:

MailScanner --version
Running on
Linux mail1 2.6.5-7.202.7-smp #1 SMP Tue Nov 29 14:32:53 UTC 2005 i686 i686 
i386 GNU/Linux
This is SUSE LINUX Enterprise Server 9 (i586)
This is Perl version 5.008003 (5.8.3)

This is MailScanner version 4.48.4
Module versions are:
1.00    AnyDBM_File
1.14    Archive::Zip
1.01    Carp
1.119   Convert::BinHex
1.00    DirHandle
1.05    Fcntl
2.72    File::Basename
2.07    File::Copy
2.01    FileHandle
1.06    File::Path
0.14    File::Temp
1.29    HTML::Entities
3.45    HTML::Parser
2.30    HTML::TokeParser
1.21    IO
1.10    IO::File
1.122   IO::Pipe
1.60    Mail::Header
3.05    MIME::Base64
5.417   MIME::Decoder
5.417   MIME::Decoder::UU
5.417   MIME::Head
5.417   MIME::Parser
3.03    MIME::QuotedPrint
5.417   MIME::Tools
0.10    Net::CIDR
1.07    POSIX
1.76    Socket
0.04    Sys::Syslog
1.02    Time::localtime

Optional module versions are:
0.17    Convert::TNEF
1.808   DB_File
1.08    Digest
1.01    Digest::HMAC
2.33    Digest::MD5
2.10    Digest::SHA1
0.44    Inline
0.17    Mail::ClamAV
3.001000        Mail::SpamAssassin
1.997   Mail::SPF::Query
0.18    Net::CIDR::Lite
0.53    Net::DNS
missing Net::LDAP
1.94    Parse::RecDescent
0.30    SAVI
1.4     Sys::Hostname::Long
2.40    Test::Harness
0.47    Test::Simple
1.95    Text::Balanced
1.35    URI