duplicate sent email

recently i have migrate from TB to eM.
now I have this strange behavior. when send an email I always put myself in bcc (to have record of an email).
now problem is: when I send email all recipients get email twice, not in a same time, difference between them is 5-10 min.
very strange…

Hello, could you send me one of the problematic messages saved in .eml format along with your smtp logs? Thank you.

here are headers of both of them
Return-path:
Received: from stribor.computech.hr (mailAV.computech.hr [194.152.210.143])
by stribor.computech.hr
(Oracle Communications Messaging Exchange Server 7u4-19.01 64bit (built
Sep 7
2010)) with ESMTP id ; Mon,
16 Jul 2012 18:57:52 +0200 (CEST)
Received: from [194.152.210.194] by stribor.computech.hr
(Oracle Communications Messaging Exchange Server 7u4-19.01 64bit (built
Sep 7
2010)) with ESMTPSA id ; Mon,
16 Jul 2012 18:57:52 +0200 (CEST)
From: =?utf-8?q?Kre=c5=a1imir=20Bradi=c4=87?=
To: =?utf-8?q?Bari=c4=87=2c=20Ante?=
Subject:
=?utf-8?q?Windows=207=20Libraries=20Explained=20=e2=80=93=20And=20Why=20You=20Want=20Them?=

Date: Mon, 16 Jul 2012 16:47:27 +0000
Content-transfer-encoding: quoted-printable
Content-type: text/plain; format=flowed; charset=utf-8
Message-id:
MIME-version: 1.0
Reply-to: =?utf-8?q?Kre=c5=a1imir=20Bradi=c4=87?=

=EF=BB=BFhttp://www.makeuseof.com/tag/windows-…=

-you-want-them/

Return-path:
Received: from stribor.computech.hr (mailAV.computech.hr [194.152.210.143])
by stribor.computech.hr
(Oracle Communications Messaging Exchange Server 7u4-19.01 64bit (built
Sep 7
2010)) with ESMTP id ; Mon,
16 Jul 2012 18:49:05 +0200 (CEST)
Received: from [194.152.210.194] by stribor.computech.hr
(Oracle Communications Messaging Exchange Server 7u4-19.01 64bit (built
Sep 7
2010)) with ESMTPSA id ; Mon,
16 Jul 2012 18:49:05 +0200 (CEST)
From: =?utf-8?q?Kre=c5=a1imir=20Bradi=c4=87?=
To: =?utf-8?q?Bari=c4=87=2c=20Ante?=
Subject:
=?utf-8?q?Windows=207=20Libraries=20Explained=20=e2=80=93=20And=20Why=20You=20Want=20Them?=

Date: Mon, 16 Jul 2012 16:47:27 +0000
Content-transfer-encoding: quoted-printable
Content-type: text/plain; format=flowed; charset=utf-8
Message-id:
MIME-version: 1.0
Reply-to: =?utf-8?q?Kre=c5=a1imir=20Bradi=c4=87?=

=EF=BB=BFhttp://www.makeuseof.com/tag/windows-…=

-you-want-them/

I am back to Thunderbird again because people to whom I have sent emails complained they get the same email twice. So I do not have log any more.
The last thing that filled my glass was after I sent email to one person client sent another one without subject, and body without any control.

I cannot believe it is eM Client’s issue. If you want to help us find the core of the problem, send us your logs please: go to menu Tools->Settings->Logging and check “SMTP” under the problematic account. Then restart eM Client, try to simulate the issue and send us (with reference to this topic) the logs using the same logging settings window. Thank you for cooperation.