David,
we store /var/mail on NetApp filers (F840c, F760c) at several sites with diffeent size (12 to 200 Sun Solaris 2.5.1/7/8/9 clients) without problems.
we automount /var/mail in /etc/auto_direct with these options:
/var/mail -rw,hard,intr,noac,actimeo=0 filer:/vol/vol1/qtree04/mail
we do use POP3, but most clients access the mailbox via NFS directly.
Hope this helps
--pwo
-- Peter W. Osel Principal - Development Systems Infineon Technologies Email: pwo@Infineon.COM North America Corp. Phone: +1 (408) 501 6321 1730 North First Street Fax: +1 (408) 501 2410 San Jose, CA 95112, USA WWW: http://pwo.de/
pgp key fingerprint = 79 2D DD 49 C0 AA D8 CF 2C F9 A5 6A BA 37 0E 28