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Feature summary for cucipop:
+ It's fast (optimised for frequently polling POP3 clients)
+ It's less filling (i.e. small)
+ Does not use *any* temporary files (which also means that the
startup time is spectacularly short, and there can never be
any stale temporary files or doubled mailboxes)
+ It can therefore serve *any* size mailbox without requiring
additional storage beyond what the file already occupies
+ A fully compliant, all frills attached, RFC1939 implementation of
the POP3 protocol
+ This means that it supports APOP *and* UIDL
+ It includes the option to sabotage the UIDL command (to defeat
undesirable "Leave mail on server" clients)
+ It also supports an optional autodelete mechanism, so that any
RETReived message is automatically deleted
+ Both the sabotage and the autodelete mechanism can be controlled
by the age of the message
+ Supports systemwide bulletins (by default, up to 64)
+ AI adaptive reordering of the mailbox to expedite mail retrieval
when someone has difficulty picking up his mail (due to mailclient
crashes or line disruptions)
+ Autoadaptive, simply start it and it will know if it has been
started from inetd or as a standalone daemon
+ Security conscious, i.e. the APOP support is fully functional
if you use the vpop support, it defeats password guessers by an
adaptive verification delay
+ Supports both BSD and SysV (Content-Length) mailbox formats
+ Native support for /var/spool/mail/b/a/bar type mailspools
+ Is the only popd to perform reliable mailbox locking across
NFS as well (it uses the same excellent and proven locking
algorithms as does procmail)
+ Provides flexible logging of statistics and auditing events
+ Does not impose *any* limits on line lengths, mail length,
or the use of any character (any 8-bit character, including '\0' is
allowed) in the mail
+ Secure system mailbox handling
+ Has hooks to ease moving the mailboxes to any location you'd like
+ Has hooks for other authentication schemes (e.g. Radius)
+ Includes virtual popserver (vpop) support
+ It runs on any POSIX and ANSI C compliant system
+ Is clock skew immune (e.g. in the case of NFS mounted mailboxes)
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