Issue Can't forward inline/reply certain emails from Roundcube webmail (i-frame issue)?

[BernieG]

Hi,

For certain emails, I can't seem to reply/forward to within my Roundcube webmail; there is no errors in the sendmail.log and the only thing I can see is when I go to send the email I noticed the following in "Chrome > Inspect > Console" browser.

• POST https://webmail.domain.com/?_task=mail&_unlock=loading1600739751464&_framed=1&_lang=en_US 403 (Forbidden)

I do have "Web Application Firewall (WAP)" enabled in Plesk but when I go to check the "error log" file I don't see any issues. Also, when I check my maillog I don't seem to see any issues there either.

I did come across a post where it talked about X-Frames and it said that "x_frame_options" should NOT be set to "deny" and when I check my "defaults.inc.php" file I see the following listed "$config['x_frame_options'] = 'sameorigin';".

Is there anything else I can look at to try to fix this issue?

Thank you!

 

[BernieG]

I did some more tests, and I notice the issue happens when I do "Forward inline" but when I do "Forward as attachment" it works properly; so I don't know why this doesn't work with "Forward inline" option?

Thank you!

 

[BernieG]

I was able to fix this issue, this page helped me get on the right track. It seems like it was a WAF issue, and I had to add the ID 212880 to the "Switch off security rules" list in Plesk for WAF. I was able to find the ID of this ModSecurity within my /var/log/httpd/error_log file.

Webmail is not working on Plesk server: Error when communicating with the server

Applicable to: Plesk Obsidian for Linux Symptoms Unable to send an email via Horde or/and Roundcube webmails due to one of the following errors: PLESK_ERROR: ForbiddenYou don't have permission...

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