Hello,
Allow me to attract your attention to a NON-Postfix issue, but rather to
a more generic email issue on which I need to find the right direction
to search for an explanation. I hope your experience and expertise may
guide me to a solution.
The problem: I am sending an HTML email (using Thunderbird) to a
particular recipient; the email has a size of a couple of KB. When I get
a reply to it from the original recipient, it has grown to a size of 2.5
MB although I can't see anything that can explain this size. No photos,
no logos, no visible attachments.
Here is an excerpt from the source of such a message, which may help:
=======================================================================================
...
X-MS-Has-Attach:
X-MS-TNEF-Correlator:
x-originating-ip: [79.131.33.225]
Content-Type: multipart/alternative;
boundary="_000_C8F4E69CA0D6EB47859C539F6B7730BD01123B47B7hge2k10dag2co_"
MIME-Version: 1.0
X-Barracuda-Connect: hge2k10dag1.corp.hygeia-group.com[172.20.253.15]
X-Barracuda-Start-Time: 1518111391
X-Barracuda-Encrypted: ECDHE-RSA-AES256-SHA
X-Barracuda-URL: https://172.20.253.200:443/cgi-mod/mark.cgi
X-Barracuda-BRTS-Status: 1
X-Virus-Scanned: by bsmtpd at Hygeia.gr
X-Barracuda-Scan-Msg-Size: 1940978
--_000_C8F4E69CA0D6EB47859C539F6B7730BD01123B47B7hge2k10dag2co_
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: base64
...<here follow about 60 lines of code which it seems to me that
contains the main message>
--_000_C8F4E69CA0D6EB47859C539F6B7730BD01123B47B7hge2k10dag2co_
Content-Type: text/html; charset="utf-8"
Content-Transfer-Encoding: base64
... <here follows a long content consisting of about 34000 lines which
seems to me inexplicable>
--_000_C8F4E69CA0D6EB47859C539F6B7730BD01123B47B7hge2k10dag2co_--
=======================================================================================
The whole message is available to anyone who would like to see it. I can
provide a link to a zipped eml file.
This is a "detective" story to me.
Thanks in advance to anyone who may be able to help!
Cheers,
Nick