On 2/7/25 17:32, Chris via Mailman-users wrote:
List has "filter content" set.
Filter Mime-Type []
Filter Extensions  exe bat cmd com pif scr vbs cpl
Accept Mime Media Types

multipart
message/rfc822
text/plain
text/html
application/pdf
application/nappdf
application/x-pdf
application/rtf
application/vnd.oasis.opendocument.spreadsheet
application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
application/vnd.ms-excel
application/vnd.oasis.opendocument.text
application/vnd.openxmlformats-officedocument.wordprocessingml.document
application/msword

Allow Extensions .zip .7z


Reduce Alternative No
Convert to Plain-Text No



Now I'm sending an Message from outlook (html) with Inline Images.
Content Filter off: Works fine
Conent Filter On,: All except the image ist fine. The image gets lost and only 
a placeholder is shown


<img data-cid="image001.png@01D65210.566F56E0" height="51" id="Grafik_x0020_1" 
src="../../attachment/view/tmai1738975737149948386/aW1hZ2UwMDEucG5nQDAxRDY1MjEwLjU2NkY1NkUw;jsessionid=03FDBB0F16AFB10F7439822AB2C59450-n4.bap20a"
 style="width: 3.3437in;height: 0.5312in;" width="321">


This is removed because you don't have image/png in accept mime types. If you want to accept images, you should probably add just the `image` main type to accept mime types.


Even if MimeTypes filter is []  signature (p7s) gets filtered.
Any hint?

To accept these, add

application/x-pkcs7-signature
application/pkcs7-signature

and you may also want to add

application/pgp-signature

When accept mime types is non-empty, only those types will be accepted.

Filtering on extensions only applies to mime parts with a filename parameter and again, if Allow Extensions is non-empty, only those filename extensions will be accepted.

See https://gitlab.com/mailman/mailman/-/blob/master/src/mailman/handlers/mime_delete.py?ref_type=heads#L262-294

--
Mark Sapiro <m...@msapiro.net>        The highway is for gamblers,
San Francisco Bay Area, California    better use your sense - B. Dylan

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