Unable to upload p7m attachments

[jackarru]

Hello,

I have recently upgraded my installation from 8.8GA to 10.0.0_GA_0001 (build 20230811135209). It's a small installation with ~50 mailboxes.

Everything seems to work normally, except that I am unable to add a particular file format (.pdf.p7m) as an attachment to an email.

This appears to be occurring only when the attachment is bigger than 2MB (size limit is 25MB for attachments).

I cannot find any useful information in logs. I see the upload starts and finishes (in the webapp logs) but it disappears as soon as it reached 100%. It is impossible to add the attachment from the briefcase too.

It looks like a problem is occurring while parsing the attachment, but still I can't find useful information in the logs.
Maybe I could clone the environment (it's a prod environment) and enable debug logging to see if that produces some useful information?

Has anyone any suggestion?

Many thanks,
Jack from Ireland

[pajari]

Hello,

Is this issue only with .p7m attachment? I see you also mentioned .pdf attachment type.
p7m is extension for S/MIME and will be sent with signed/encrypted email. Can you provide information on how are you creating .p7m attachment and which client you are using to send email with .p7m attachment.

[jackarru]

Hi, apologies for the late reply - I thought my message was not approved in the forum.

The only attachments that do not work as .pdf.p7m - it's a digitally signed pdf file with the extension ".pdf.p7m".

I will try disabling the option to restrict encrypted archives and see if that helps - maybe the file is seen as enc arch.

Jack

[jackarru]

Hi, I still did not solve the issue.

I am attaching an example file to see if anyone else is able to reproduce the issue.

Since the forum does not allow attaching p7m files, here is a download link: https://drive.google.com/file/d/1IYbC96 ... sp=sharing

[uttam.takalkar]

This will be available in next Zimbra patch which will be released by mid december.