Nikolaos Milas:
> 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>
That could be the text version of the content.
> --_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>
And that could be the HTML version of the same content. After
base64 decoding, expect to see a lot of HTML tags, and perhaps
javascript.
Wietse
> --_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
>
>
