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Article ID: 122448, created on Jul 22, 2014, last review on Jul 22, 2014

  • Applies to:
  • Operations Automation 5.5
  • Operations Automation 5.4


While trying to open Webmail, this error is shown:

"Service Unavailable". The corresponding service is not available at the moment, trying it withing 2-3 minutes. For more information please contact your service provider." is shown.

At the same time /var/log/httpd_error_log.ssl on the Webmail server shows

Allowed memory size of 52428800 bytes exhausted (tried to allocate 1048576 bytes)


Low Apache memory limit prevents Webmail from opening correctly.


Modify the below values in webmail.conf

[root@webmail ~]# grep memory_limit `/usr/local/pem/etc/apache/webmail.conf`
  php_admin_value memory_limit 150M
  php_admin_value memory_limit 150M

Then restart the Apache service to apply the changes:

# /usr/local/pem/etc/apache/pemhttpd.init restart

ac82ce33439a9c1feec4ff4f2f638899 caea8340e2d186a540518d08602aa065 5356b422f65bdad1c3e9edca5d74a1ae 2554725ed606193dd9bbce21365bed4e 5b048d9bddf8048a00aba7e0bdadef37 e12cea1d47a3125d335d68e6d4e15e07

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