Random "On Behalf Of" When Sending Email

[det]

Hi,

I got a complain from one of my users stating that "on behalf of" is randomly appearing on the mail header when he sends an email.

There are no shared folders between the users.

I noticed from mailbox.log that user2 has login to user1 account. user2 is not an admin user and has no privilege to access user1 account. From the log, looks like user2 also sent and received a mail for user1.

What the aname stands for btw? alias name? access name?



Thanks in advance.



2010-12-14 13:02:15,499 INFO [btpool0-290://mail.abc.com/service/soap/SendMsgRequest] [name=user1@abc.com;aname=user2@abc.com;mid=396;ip= 1.1.1.1;ua=ZimbraConnectorForOutlook/5.0.3064.18;] soap - SendMsgRequest

2010-12-14 13:02:15,510 INFO [btpool0-290://mail.abc.com/service/soap/SendMsgRequest] [name=user1@abc.com;aname=user2@abc.com;mid=396;ip= 1.1.1.1;ua=ZimbraConnectorForOutlook/5.0.3064.18;] mailop - Adding Message: id=3138, Message-ID=<754203041.1512.1292302935500.JavaMail.root@mbo x1>, parentId=2993, folderId=5, folderName=Sent.

2010-12-14 13:02:15,524 INFO [btpool0-290://mail.abc.com/service/soap/SendMsgRequest] [name=user1@abc.com;aname=user2@abc.com;mid=396;ip= 1.1.1.1;ua=ZimbraConnectorForOutlook/5.0.3064.18;] smtp - Sending message to MTA at smtp.abc.com: Message-ID=<754203041.1512.1292302935500.JavaMail.root@mbo x1>, uploads=[Upload: { accountId=448391ed-dca0-4f4e-89dc-51a9217ee325, time=Tue Dec 14 13:02:15 SGT 2010, uploadId=ca76d0e2-2cd0-450e-9319-1827574be9d8:324b3850-9963-45bf-9691-015ac85f23e4, lslib32.bin}], replyType=r

[det]

Anyone encountered this issue?

Have checked both master LDAP and slave LDAP servers. All share information via zmprov are same. Could it be a cached data? Cached share?

[xinfaith]

Bump thread.
Will appreciate if any Zimbra employers or moderators can advise on the above matter.
Thanks in advice!