Some email cannot be display and other works fine

[Eladriel]

Hello everyone,

I can login normally that's is ok and I have the list of my mail displayed so far so good!!

When i try to read an email some mail can be displayed (mostly mail from the server) and when i try to read mail from my boss or other like confirmation mail by roundcube forum it's a blank page who as displayed and anything else happened... No loading or refresh can resolve that...

The behavior is the same for me or other in my company.

Ps: I have just rename the roundcube/installer to roundcube/rm_installer_20150910 but with or whitout that it's the same issue...

[JohnDoh]

Whats in the roundcube error log? ([rc root]/logs/errors) at a guess I'd say your PHP install is missing the DOM extension and so it cannot display HTML emails.

Also if you ran the rc installer it would check your setup meets all the requirements.

[Eladriel]

Yes you're right!!! Thank you

In the rror log :
[11-Sep-2015 10:15:31 Europe/Paris] PHP Fatal error:  Class 'DOMDocument' not found in /home/mondomaine.net/public_html/roundcube/program/lib/Roundcube/rcube_washtml.php on line 364

I've solved this issue with :
Go to mondomaine.net/roundcube/installer and on the checklist there are  : DOM NOT OK
Now for solve this issue on centos 6.7:

(sudo) yum install php56w-xml php56w-devel

php56w-devel is maybe not required but in the DOM documentation on roundcube people add a comment about that...

After restart you're httpd server and reload web page :
mondomaine.net/roundcube/installer

Now normally DOM -> OK

You can delete or rename you're installer in the folder of roundcube

For information i've got this issue with the automatic installer roundcube of virtualmin webmin.
Thank you again JohnDoh