Paul, All, I have updated a production box to PHP7 briefly on Archlinux server and promptly broke an older install of eGroupware, I did not check squirrelmail at that time. I downgraded to PHP 5.6 until I can get the groupware issue resolved. squirrelmail.org still shows the announcement that it supports PHP 5.4-5.5, (which I chuckled, since it is more current than my site even though that was the update from 2013 :) I have updated squirrelmail to svn revision 14549 and setup squirrelmail on another Arch server with PHP7. I am receiving the following errors: SquirrelMail notice messages Category: PHP Message: mb_strtolower() [function.mb-strtolower]: Unknown encoding "(null)" FILE: /srv/http/htdocs/squirrelmail/class/template/Template.class.php LINE: 1310 Category: PHP Message: mb_strtolower() [function.mb-strtolower]: Unknown encoding "(null)" FILE: /srv/http/htdocs/squirrelmail/class/template/Template.class.php LINE: 1310 Category: PHP Message: mb_strtolower() [function.mb-strtolower]: Unknown encoding "(null)" FILE: /srv/http/htdocs/squirrelmail/class/template/Template.class.php LINE: 1310 Category: PHP Message: mb_strtolower() [function.mb-strtolower]: Unknown encoding "(null)" FILE: /srv/http/htdocs/squirrelmail/functions/template/general_util.php LINE: 39 Category: PHP Message: mb_stristr() [function.mb-stristr]: Unknown encoding "(null)" FILE: /srv/http/htdocs/squirrelmail/functions/template/general_util.php LINE: 41 Category: PHP Message: mb_stristr() [function.mb-stristr]: Unknown encoding "(null)" FILE: /srv/http/htdocs/squirrelmail/functions/template/general_util.php LINE: 45 The 39, 41, 45 messages repeat several more times. It looks like it is really close. Is there something else I can send or test to help out? (unfortunately I'm not a php programmer, but I can work a keyboard and get whatever you may think will help) Above all messages look like they are mbstring complaints about an encoding not being set. Do I need to set encoding to UTF-8 or set something to make mbstring happy? The only mbstring setting I have in php.ini is: mbstring.func_overload = 7 (which is a groupware requirement) Is there something I should try to resolve these messages on my end? Thanks and keep up the great work. -- David C. Rankin, J.D.,P.E. ------------------------------------------------------------------------------ Transform Data into Opportunity. Accelerate data analysis in your applications with Intel Data Analytics Acceleration Library. Click to learn more. http://pubads.g.doubleclick.net/gampad/clk?id=278785351&iu=/4140 ----- squirrelmail-users mailing list Posting guidelines: http://squirrelmail.org/postingguidelines List address: squirrelmail-users@xxxxxxxxxxxxxxxxxxxxx List archives: http://news.gmane.org/gmane.mail.squirrelmail.user List info (subscribe/unsubscribe/change options): https://lists.sourceforge.net/lists/listinfo/squirrelmail-users