Hey, I'm running a shared server (perfect server centos with courier) and have about 125 email users. I have been having an issue with my IOS users (iphone, ipad) using IMAP; every once and awhile a user gets a "server not responding" message. I check the log and it looks like this: Code: Jul 19 09:47:38 localhost imapd: LOGIN, [email protected], ip=[::ffff:11.11.11.111], port=[63804], protocol=IMAP Jul 19 09:47:39 localhost imapd: DISCONNECTED, [email protected], ip=[::ffff:11.11.11.111], headers=0, body=0, rcvd=90, sent=188, time=1 Jul 19 09:47:41 localhost imapd: LOGIN, [email protected], ip=[::ffff:11.11.11.111], port=[63805], protocol=IMAP Jul 19 09:47:41 localhost imapd: DISCONNECTED, [email protected], ip=[::ffff:11.11.11.111], headers=0, body=0, rcvd=90, sent=188, time=0 Jul 19 09:47:41 localhost imapd: LOGIN, [email protected], ip=[::ffff:11.11.11.111], port=[63806], protocol=IMAP Jul 19 09:47:41 localhost imapd: DISCONNECTED, [email protected], ip=[::ffff:11.11.11.111], headers=0, body=0, rcvd=90, sent=188, time=0 Jul 19 09:47:41 localhost imapd: LOGIN, [email protected], ip=[::ffff:11.11.11.111], port=[63807], protocol=IMAP Jul 19 09:47:41 localhost imapd: DISCONNECTED, [email protected], ip=[::ffff:11.11.11.111], headers=0, body=0, rcvd=90, sent=188, time=0 The only fix it seems is for the user to delete the mail account and re-add it to their phone. I have IDLE disabled. MAXDAEMONS=500 MAXPERIP=500 Have any of you run into this problem? Thanks!