I’m running CentOS 5.7 with sendmail-8.13.8-8.1.el5_7, fetchmail-6.3.6-4.el5 and procmail-3.22-17.1.el5.CentOS. My server is having around 2000 mailboxes and this server used to fetch mails for all these users using fetchmail from the other MX serv..

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