Problem in horde webmail_cannot open email from specific email add.

[cristina]

Hello Support,

Good day.

I have a plesk12 webhost linux. We are having an issue about horde webmail. Weird because one of the email user cannot open email coming from specific email address and this is the message:

Error Message: Error when communicating with the server
and
There has been no contact with the server for several minutes. The server may be temporarily unavailabe or network problems may be interrupting your session. You will not see any updates until the connection is restored.

Now upon checking to the error logs of httpd, I found the ff:
[Tue Jul 14 16:53:09 2015] [warn] [client 202.X.X.X] mod_fcgid: stderr: PHP Fatal error: Class 'Math_BigInteger' not found in /usr/share/psa-pear/pear/php/Horde/Mapi.php on line 172, referer:http://webmail.domainsample.com/imp/dynamic.php?page=mailbox

Can you help me to solve this issue? I searched the google but I cannot see any related to this.

Please note: I hide the IP details and domain name.

Thanks,
Cristina

 

[Alex@Plesk]

Hello cristina,

Try this workaround:

# /usr/share/psa-pear/pear/pear install Math_BigInteger
# cp -R /usr/share/pear/Math/ /usr/share/psa-pear/pear/php/