Knowledgebase: All Things Email
Blocked from checking mail via POP. Why?
Posted by SITEWORKS SYS on 21 December 2009 06:48 PM
Affects cPanel users only

Our cPanel servers allow 60 POP3 logins per user per hour (3600 second interval) and if exceeded, the server's security programs perceive an attack and will block you temporarily - during which time you cannot check mail. For some users that try to check more than 60 times per hour, they may get blocked several times daily.

To avoid this, please set your mail program to check mail every 3 minutes and not every minute.

For Outlook example on changing the frequency of mail checking, see http://support.microsoft.com/kb/263569

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