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You have been eagerly waiting, and we have been working hard over the summer to deliver the latest Exchange Server 2010 enhancements ...
Updated Jul 01, 2019
Version 2.0
Blog Post
3 MIN READ
The Future of Exchange Starts Here: Exchange Server 2010 SP1 Is Now Available
Error using POP3 (or IMAP) protocol. It is ok on "user", "pass" and "list" command, but when trying "retr" command, get and error "-ERR Server Unavailable. 21"
There is detailed POP3- log:
2010-08-30T06:20:35.287Z,0000000000000074,3,192.168.200.35:110,192.168.205.104:49640,,0,18,5,user,alex@pri.int,R=ok
2010-08-30T06:20:35.365Z,0000000000000074,4,192.168.200.35:110,192.168.205.104:49640,alex,62,10,34,pass,*****,"R=ok;RpcC=19;RpcL=32;LdapC=2;Msg=""User:alex:1bd8ff46-86b5-4dd7-a9b8-a22022a7d926:Mailbox Database MX2:PRI-MX2.pri.int"";Budget=""Conn:0,HangingConn:0,AD:$null/$null/0%,CAS:$null/$null/2%,AB:$null/$null/0%,RPC:$null/$null/1%,FC:1000/0,Policy:DefaultThrottlingPolicy_48276fb6-487b-4da7-82b7-2baad37e3f62,Norm[Resources:(DC)pri-dc1.pri.int(Health:-1%,HistLoad:0),(Mdb)Mailbox Database MX2(Health:-1%,HistLoad:0),]"""
2010-08-30T06:20:35.412Z,0000000000000074,5,192.168.200.35:110,192.168.205.104:49640,alex,46,6,29,retr,1,"R=""-ERR Server Unavailable. 21"";RpcC=6;Excpt=""imceaDomain must be a valid domain name.-ArgumentException"";Budget=""Conn:0,HangingConn:0,AD:$null/$null/0%,CAS:$null/$null/2%,AB:$null/$null/0%,RPC:$null/$null/1%,FC:1000/0,Policy:DefaultThrottlingPolicy_48276fb6-487b-4da7-82b7-2baad37e3f62,Norm[Resources:(DC)pri-dc1.pri.int(Health:-1%,HistLoad:0),(Mdb)Mailbox Database MX2(Health:-1%,HistLoad:0),]"""
2010-08-30T06:20:35.427Z,0000000000000074,6,192.168.200.35:110,192.168.205.104:49640,alex,0,4,61,quit,,"R=ok;Budget=""Conn:0,HangingConn:0,AD:$null/$null/0%,CAS:$null/$null/2%,AB:$null/$null/0%,RPC:$null/$null/1%,FC:1000/0,Policy:DefaultThrottlingPolicy_48276fb6-487b-4da7-82b7-2baad37e3f62,Norm[Resources:(DC)pri-dc1.pri.int(Health:-1%,HistLoad:0),(Mdb)Mailbox Database MX2(Health:-1%,HistLoad:0),]"""
There is detailed POP3- log:
2010-08-30T06:20:35.287Z,0000000000000074,3,192.168.200.35:110,192.168.205.104:49640,,0,18,5,user,alex@pri.int,R=ok
2010-08-30T06:20:35.365Z,0000000000000074,4,192.168.200.35:110,192.168.205.104:49640,alex,62,10,34,pass,*****,"R=ok;RpcC=19;RpcL=32;LdapC=2;Msg=""User:alex:1bd8ff46-86b5-4dd7-a9b8-a22022a7d926:Mailbox Database MX2:PRI-MX2.pri.int"";Budget=""Conn:0,HangingConn:0,AD:$null/$null/0%,CAS:$null/$null/2%,AB:$null/$null/0%,RPC:$null/$null/1%,FC:1000/0,Policy:DefaultThrottlingPolicy_48276fb6-487b-4da7-82b7-2baad37e3f62,Norm[Resources:(DC)pri-dc1.pri.int(Health:-1%,HistLoad:0),(Mdb)Mailbox Database MX2(Health:-1%,HistLoad:0),]"""
2010-08-30T06:20:35.412Z,0000000000000074,5,192.168.200.35:110,192.168.205.104:49640,alex,46,6,29,retr,1,"R=""-ERR Server Unavailable. 21"";RpcC=6;Excpt=""imceaDomain must be a valid domain name.-ArgumentException"";Budget=""Conn:0,HangingConn:0,AD:$null/$null/0%,CAS:$null/$null/2%,AB:$null/$null/0%,RPC:$null/$null/1%,FC:1000/0,Policy:DefaultThrottlingPolicy_48276fb6-487b-4da7-82b7-2baad37e3f62,Norm[Resources:(DC)pri-dc1.pri.int(Health:-1%,HistLoad:0),(Mdb)Mailbox Database MX2(Health:-1%,HistLoad:0),]"""
2010-08-30T06:20:35.427Z,0000000000000074,6,192.168.200.35:110,192.168.205.104:49640,alex,0,4,61,quit,,"R=ok;Budget=""Conn:0,HangingConn:0,AD:$null/$null/0%,CAS:$null/$null/2%,AB:$null/$null/0%,RPC:$null/$null/1%,FC:1000/0,Policy:DefaultThrottlingPolicy_48276fb6-487b-4da7-82b7-2baad37e3f62,Norm[Resources:(DC)pri-dc1.pri.int(Health:-1%,HistLoad:0),(Mdb)Mailbox Database MX2(Health:-1%,HistLoad:0),]"""