Mail user doesn't receive any email, log looks fine

[ATC]

POP3 users can't fetch their mail, the password is confirmed but doesn't seem to work. The mail log shows email traffic coming in and POP3 connections as working OK.

Oct 17 14:58:51 hermes vpopmail[652]: vchkpw: login [user] from #.#.#.#
Oct 17 15:04:33 hermes qmail: 1034859873.794415 starting delivery 26924: msg 49250 to local user@hermes.atc.no
Oct 17 15:05:16 hermes qmail: 1034859916.305039 starting delivery 26927: msg 49257 to local user@hermes.atc.no

[ATC]

Verify that the devileries are actually completed OK. If not, check that the user quota has not been exceeded.

If a very large message has been delivered, it is possible that the hard limit has been reached, which will cause vpopmail to fail because it can't create its temporary files.