[ale] email server crashes

[Gary S MacKay]

I have a RedHat 7.0 box acting as a gateway/firewall to a DSL
connection, and it is an email server. For now, ignore the qmail/etc.
suggestions, I need to get this fixed for my client. I have several
boxes just like it and don't have any problems with the others.

Problem: One of the users receives messages with large attachments. Once
her /var/spool/mail/<username> file gets over, say, 100mg, she can no
longer send/receive any email. The log file is filled with these
messages:

Apr 26 15:29:53 mail ipop3d[3642]: Can't resize memory
Apr 26 15:29:53 mail ipop3d[3642]: IMAP toolkit crash: Can't resize
memory
Apr 26 15:41:15 mail sendmail[3789]: f3QJdF403788: timeout waiting for
input from local during Draining Input


Software Specs:
RedHat 7.0 w/all up2date(s)
sendmail-8.11.0-8
fetchmail-5.5.0-3
xinetd-2.1.8.9pre11-1
imap-2000-3

Hardware specs:
Pentium II 266
64mg RAM

Hard Drive:
Filesystem            Size  Used Avail Use% Mounted on
/dev/hda5             252M   39M  200M  17% /
/dev/hda1              19M  2.5M   15M  14% /boot
/dev/hda8              49M  2.1M   44M   5% /home
/dev/hda7             593M  443M  120M  79% /usr
/dev/hda9             1.1G  392M  675M  37% /var

Disk /dev/hda: 128 heads, 63 sectors, 621 cylinders
Units = cylinders of 8064 * 512 bytes

   Device Boot    Start       End    Blocks   Id  System
/dev/hda1   *         1         5     20128+  83  Linux
/dev/hda2             6       621   2483712    5  Extended
/dev/hda5           462       527    266080+  83  Linux
/dev/hda6           594       621    112864+  82  Linux swap
/dev/hda7             6       158    616833   83  Linux
/dev/hda8           159       171     52384+  83  Linux
/dev/hda9           172       461   1169248+  83  Linux
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