Webmail is slow. It takes much time to load the webmail page

Created:

2016-11-16 13:17:17 UTC

Modified:

2017-04-24 11:40:30 UTC

0

Was this article helpful?


Have more questions?

Submit a request

Webmail is slow. It takes much time to load the webmail page

Applicable to:

  • Plesk 11.5 for Linux
  • Plesk 12.0 for Linux

Symptoms

Webmail is opening very slow, it takes ~40 second to load the webmail page.

From internal network the ping retrieves the following respond:

    # ping example.com -f -l 1589
ICMP requests with size more than MTU failed

Cause

  1. Bandwidth limiter for Apache mod_bw is enabled:

    # httpd -M | grep mod_bw
    mod_bw
    Syntax OK
  2. MTU size is not properly set for network.

Resolution

  1. Disable mod_bw module using Plesk autoinstaller and check the access to webmail:

    /usr/local/psa/admin/bin/autoinstaller
  2. If access to webmail is still loading very slow in internal network, but from external is loading fine, most probably this can means that packets with size more than MTU are not fragmented. Contact system administrator to check the configuration of network equipment since this issue is considered to be Administative Task which is Out of Odin Technical Support Scope .

    Please use the link for your reference:

    How to find the proper MTU size for my network .

Have more questions? Submit a request
Please sign in to leave a comment.