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Unknow Mail in Sent Item

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Unknow Mail in Sent Item - 17.Feb.2015 8:43:17 AM   
namgyver

 

Posts: 2
Joined: 17.Feb.2015
Status: offline
Hello,
On a farms Exchange 2013 SP1, one of my users find a mail in his sent item that he doesn't have sent.
I have seen the mail in question and it's a mail from another user in the organization, who use a non up2 date mac mail client

to ensure that the problem is clear :
User A sent a mail to B but the mail come in sent item of user C and the from adress has been changed from A to C
The user A use the native mail client on his macbook (client version = mac mail 7.3)

I have checked the tracking/smtp logs and everything show that the mail is from user C (except mail content and email properties (mail client version).

I didn't reach to explain this and I think that there is a security problem.


Thanks for any suggestions or informations

NamGyver

_____________________________

NamGyver
Post #: 1
RE: Unknow Mail in Sent Item - 18.Feb.2015 9:42:25 AM   
namgyver

 

Posts: 2
Joined: 17.Feb.2015
Status: offline
I have forgot to let know that naturally there is no full mailbox right nor send on behalf

NamGyver

(in reply to namgyver)
Post #: 2

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