I'm beginning to be desperate regarding a mail that seems to have completely disappeared on my Ubuntu Linux 10.04 LTS 64 bit server running qmail+vpopmail. Every domain has a .qmail-default containing the following: /home/vpopmail/bin/vdelivermail '' bounce-no-mailbox
Furthermore the server has software RAID1 with 3 hard-drives.
Here is what happened:
May 8 at 8:59 user A sends a message to user B and C. A, B and C are all local mail users. a-local-domain, b-local-domain and c-local-domain are all hosted at my server (hence the names).
2013-05-08 08:59:18.240881500 new msg 264573
2013-05-08 08:59:18.240882500 info msg 264573: bytes 1641963 from <aATa-local-domain.com> qp 9051 uid 33
2013-05-08 08:59:18.240899500 starting delivery 1570: msg 264573 to local b-local-domain.com-bATb-local-domain.com
2013-05-08 08:59:18.240900500 status: local 1/10 remote 0/10
2013-05-08 08:59:18.240901500 starting delivery 1571: msg 264573 to local c-local-domain.com-cATc-local-domain.com
2013-05-08 08:59:18.240907500 status: local 2/10 remote 0/10
2013-05-08 08:59:18.475726500 delivery 1571: success: did_0+0+1/
2013-05-08 08:59:18.475750500 status: local 1/10 remote 0/10
2013-05-08 08:59:19.210562500 delivery 1570: success: did_0+0+1/
2013-05-08 08:59:19.210631500 status: local 0/10 remote 0/10
2013-05-08 08:59:19.210669500 end msg 264573
User C has confirmed that he received the message successfully. User B, however, claims never to have received the message. And I believe he is right:
At May 8 08:30:05 user C logs in and checks his mail. He does not check mail until May 9 12:01:27. I see this in the mail.info log files.
I have a daily back-up from May 9 04:30, and here the mail is not present! It should be here, because user C could not have deleted the message. The mail is totally local, no chance of spam-filter interference by SpamAssassin.
And no: user C has not set up any mail forwarding - I've checked it myself.
Where should I start digging? My server hardware, RAID, file system, qmail, vpopmail???
Any help much appreciated!