Try setting $lossy_encoding to true in your config.php and see if it helps.
If your server upgrade also upgraded PHP to version 5.4, then you're facing
a very common problem, since currently SquirrelMail doesn't support PHP 5.4.
But some patches are being actively developed (see the Squirrelmail si
The closest equivalent to Roundcube that I've seen in SquirrelMail is
Ensignia (old NutsMail - nutsmail.com). It's a SquirrelMail fork based on
1.4.22. It adds a theming engine (including mobile support) and some ajax
here and there, but it's not fully ajax-based like Roundcube. It's got some
very
