On 10/3/22 14:40, Dedet Saputra wrote:
Mohon bantuan, User kami menerima email dari [email protected] di email tertulis ada attachment nya, tapi emailnya dibuka di web client dan thunderbird tidak muncul attatchment nya. LOG sebagai berikut :


Sat 2022-10-01 09:20:09.367: [55678166] Message size: 3437 bytes


Message size nya terlalu kecil untuk ada lampiran filenya.


Content-Type: text/html;
        charset="utf-8"
Content-Transfer-Encoding: quoted-printable


Yang mungkin ada sisipan URL link (remote image), yang di thunderbird hanya akan tampil kalau di set view message body as Original HTML.

https://www.systoolsgroup.com/updates/view-thunderbird-email-in-html-source/

https://groups.google.com/g/mozilla.support.thunderbird/c/iASj7i5vPYk


Webmail standar installnya akan block sisipan HTML, karena sisipan macam itu vulnerable.

http://mdaemon.dutaint.co.id/mdaemon/22.0/wc--options.html

[x] Block HTML images

Enable this check box if you wish to prevent remote images from being
displayed automatically when viewing HTML email messages in Webmail.
In order to view the images the user must click the bar that appears
above the message in the browser window. This is a spam prevention
feature, because many spam messages contain images with special URLs
that identify the email address of the user who viewed the images,
thus confirming to the spammer that it is a valid, working address.
This option is enabled by default.







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syafril
--------
Syafril Hermansyah
MDaemon-L Moderators, running MDaemon 22.5.0 Beta B
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