| Event Id | 11508 |
| Source | MSExchange POP3 Interface |
| Description | Accept clients on <POP3> interface failed in function HrRegisterProtocol with error <0x2740>. |
| Event Information | Various interface / error codes combinations: - POP3 - 0x2740 - A.G.: "This issue can occur if another program is using the Transmission Control Protocol (TCP) port that the information store uses for the corresponding protocol. If a program is already using port 110 (POP3), 119 (NNTP) or 143 (IMAP), the information store is unable to open these ports for the Post Office Protocol, version 3 (POP3), Network News Transport Protocol (NNTP) or Internet Message Access Protocol, version 4rev1 (IMAP4) protocols respectively. To resolve this issue, quit the program or service that is using the ports that the information store uses, or configure the program to use different ports". Also refer MS Support document Q271275. |
| Reference Links | XFOR:
GroupShield Interferes with POP3/IMAP with SSL Enabled XADM: Error Message Cites Logon Problem and Password Rejection When You Try to Connect Through POP3 Client |
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