Hello,

We are using dovecot-2.2.18 on CentOS 5 (with Postfix 2.11.6).

There is a usercomplaining that some incoming mails never show up in webmail (we are using squirrelmail - the user is checking for mail regularly and is not ignorant) and can only be seen/downloaded through a mail client via POP3 (the user uses "Leave on Server" option).

Has anyone seen such a behavior? Can you suggest some troubleshooting steps or solution?

What may cause some mails to not show in webmail - (or in general to mails accessed via IMAP, as I interpret it)?

Here is a description of user's mail directory (I have modified real server name and real user name):

[root@vmail ~]# tree -a /home/vmail/userx/Maildir /home/vmail/userx/Maildir |-- .Drafts | |-- cur | | -- 1291495293.M455532P28446.mail.example.com,S=2016,W=2060:2,DS | |-- dovecot-uidlist | |-- dovecot.index.cache | |-- dovecot.index.log | |-- maildirfolder | |-- new | -- tmp |-- .INBOX.Drafts | |-- cur | | -- 1317985345.M717332P17981.mail.example.com,S=1256,W=1298:2,S | |-- dovecot-uidlist | |-- dovecot.index.cache | |-- dovecot.index.log | |-- maildirfolder | |-- new | -- tmp |-- .INBOX.Sent | |-- cur | | |-- 1303148518.M786490P28055.mail.example.com,S=383974,W=388998:2,S | | |-- <many similar files follow here> | | -- 1458641247.M780515P22153.mail.example.com,S=2778,W=2888:2,S | |-- dovecot-uidlist | |-- dovecot.index | |-- dovecot.index.cache | |-- dovecot.index.log | |-- maildirfolder | |-- new | -- tmp |-- .INBOX.Trash | |-- cur | | |-- 1455084995.M236797P27939.mail.example.com,S=39655,W=40327:2,S | | |-- 1455084996.M373621P27992.mail.example.com,S=94946,W=97005:2,S | | |-- 1455690687.M743447P11583.mail.example.com,S=109210,W=111694:2,S | | |-- 1456121828.M32979P25956.mail.example.com,S=174894,W=178527:2,S | | -- 1456366474.M522472P27380.mail.example.com,S=20063,W=20335:2,S | |-- dovecot-uidlist | |-- dovecot.index.cache | |-- dovecot.index.log | |-- maildirfolder | |-- new | | |-- 1449469045.M142541P26276.mail.example.com,S=118084,W=120599 | | |-- 1449814602.M29713P24846.mail.example.com,S=113968,W=116461 | | |-- 1450678606.M352804P11212.mail.example.com,S=191359,W=195422 | | |-- 1451034941.M878471P18927.mail.example.com,S=77701,W=79419 | | |-- 1451097359.M319601P27933.mail.example.com,S=117288,W=119151 | | |-- 1451459809.M54788P7084.mail.example.com,S=134906,W=137765 | | |-- 1453702659.M398592P1919.mail.example.com,S=142222,W=145237 | | -- 1455441375.M222594P8728.mail.example.com,S=72778,W=74381 | -- tmp |-- .Sent | |-- cur | | |-- 1291025141.M538922P4661.mail.example.com,S=428,W=440:2,S | | -- 1291028972.M219139P6461.mail.example.com,S=678,W=703:2,S | |-- dovecot-uidlist | |-- dovecot.index.cache | |-- dovecot.index.log | |-- maildirfolder | |-- new | -- tmp |-- .Trash | |-- cur | |-- dovecot-uidlist | |-- dovecot.index.cache | |-- dovecot.index.log | |-- maildirfolder | |-- new | -- tmp |-- cur | |-- 1457129096.M348209P26766.mail.example.com,S=146633,W=148587:2,S | |-- <many similar files follow here> | -- 1458901831.M100577P22147.mail.example.com,S=2439,W=2485:2,S |-- dovecot-keywords |-- dovecot-uidlist |-- dovecot-uidvalidity |-- dovecot-uidvalidity.4cf379b0 |-- dovecot-uidvalidity.53347527 |-- dovecot.index |-- dovecot.index.cache |-- dovecot.index.log |-- dovecot.index.thread |-- dovecot.mailbox.log |-- maildirfolder |-- maildirsize |-- new |-- subscriptions -- tmp

27 directories, 468 files

Some additional info:

[root@mail ~]# doveadm quota get -u userx Quota name Type Value Limit % User quota STORAGE 274366 5242880 5 User quota MESSAGE 430 - 0

Thanks in advance, Nick