Messages sent with header only, SYSERR(root): readqf: cannot open

[Dawson, Alan]

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I'm seeing a few messages that seem to get sent twice, the first time with
only the header, then the full message later.

/var/log/mail shows entries like

Nov 22 12:20:28 charon sendmail[16998]: iAMCKBqG016952: SYSERR(root):
readqf: cannot open ./dfiAMCKBqG016952: No such file or directory


I've googled for this and found

http://www.talkroot.com/archivee/index.php/t-3023__SYSERR(root):_readqf:_can
not_open.html

which suggests some file locking issues

I'm running
Sendmail 8.12.10 from SuSE Linux 9.0

with MailScanner 4.35.11

I notice in the depths of the MailScanner.conf

# How to lock spool files.
# Don't set this unless you *know* you need to.
# For sendmail, it defaults to "flock".
# For sendmail 8.13 onwards, you will probably need to change it to posix.
# For Exim, it defaults to "posix".
# No other type is implemented.
Lock Type =


Do i "need to"  and how would I know ?

Any help appreciated
Alan Dawson
--
ICT Services

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