Err Protocol Error. 16
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Previous Versions - Mail Flow and Secure Messaging Question 0 Sign in to vote err quic protocol error Hi Folks - Posted this in what may have been the wrong forum -- hopefully THIS is the right one. Having
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an issue with POP3 w/ our Exchange 2010 SP2 setup. Using telnet to test connecting to port 110 of either of our CAS/Hub servers and entering a valid user and pass, the error '-ERR Command err ssl protocol error is not valid in this state.' is generated. Now, the common fix for this is to run the EMS command 'Set-PopSettings -LoginType PlainTextLogin' which we have done, as well as restarting the POP3 service. This has not resolved the issue. It does not appear to matter if the mailbox lives on 2003 (as we are co-existing, for now) or a 2010 mailbox server. Any ideas? What are we missing? Any help err ssl protocol error android would be greatly appreciated. THANK YOU! -Craig Friday, April 13, 2012 2:47 PM Reply | Quote Answers 0 Sign in to vote Just a quick follow-up to all of this.... Our issue is resolved. SOMETHING changes w/ RU2, as our applications began working after applying that. However, using Putty as a telnet client w/ Exchange 2010 absolutely was an issue, and we confirmed this with Microsoft as well. Network traces showing that it was throwing some garbage characters upon first connecting to Exchange. What's weird, is we use Putty to manage all sorts of stuff without issue -- Cisco gear, VMware ESXi servers, misc. appliances, etc. Thank you to everyone who offered assistance. It is appreciated! -Craig Marked as answer by Xiu Zhang Wednesday, April 25, 2012 6:09 AM Tuesday, April 24, 2012 12:22 PM Reply | Quote All replies 0 Sign in to vote Hi, Please post the whole telnet process here. Please try to enable protocol logging for pop3 and then post the realted error information here. Configure Protocol Logging for POP3 and IMAP4 http://technet.microsoft.com/en-us/library/aa997690.aspx By the way, how many Exchange Servers in the environment? Do you have Exchange 2003 included? Xiu Zhang TechNet Community Support
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for Help Receive Real-Time Help Create a Freelance Project Hire for a Full Time Job Ways to Get Help Ask a Question Ask for Help Receive Real-Time Help Create a Freelance Project Hire for a Full Time Job Ways to Get Help Expand Search Submit Close Search https://www.experts-exchange.com/questions/28083232/Can't-get-e-mail-via-POP3-Exchange-2010.html Login Join Today Products BackProducts Gigs Live Careers Vendor Services Groups Website Testing Store Headlines Experts Exchange > Questions > Can't get e-mail via POP3 Exchange 2010 Want to Advertise Here? Solved Can't get e-mail via POP3 Exchange 2010 Posted on 2013-04-01 Exchange 1 Verified Solution 16 Comments 3,340 Views Last Modified: 2013-04-04 I'm trying to set up a new exchange server and have everything configured to send e-mail and receive through outlook web access and standard protocol error exchange access. However I can't get the email through POP3. I've enabled the service, added firewall rules. If I set up the account in outlook for POP3 access and do the "Test Account Settings" "Log onto incoming mail server (POP3)" shows as completed as if it works. Once I close this, and do a send/receive I get the following error. Task 'email@....net - Receiving' reported error (0x800CCC90) : 'Your incoming (POP3) e-mail server has reported an internal err quic protocol error. If you continue to receive this message, contact your server administrator or Internet service provider (ISP). The server responded: -ERR Server Unavailable. 21' 0 Question by:zer0zer0 Facebook Twitter LinkedIn Google LVL 10 Active 7 days ago Best Solution bycpmcomputers Try from a simple command prompt it seems there is a known issue with putty and exchange 2010 Is your internal domain in the format mydomain.local or my domain.com I take it that it is added Go to Solution 16 Comments LVL 6 Overall: Level 6 Exchange 1 Message Expert Comment by:RaithZ2013-04-01 Do you have the pop3 connector set to require ssl or tls? 0 LVL 10 Overall: Level 10 Exchange 5 Message Active 7 days ago Expert Comment by:cpmcomputers2013-04-02 Pop3 on exchange 2010 does not allow basic password connections by default You can change it but it is considered a security risk To prove if this is your problem If you telnet the server internally Ie telnet serverip 110 You will get a message server not available in this state error 0 Message Author Comment by:zer0zer02013-04-02 I get the following +OK The Microsoft Exchange POP3 service is ready. If I hit enter, I get "-ERR PROTOCOL ERROR. 17" If I hit enter again, I get "-ERR PROTOCOL ERROR 19" 0 LVL 10 Overall: Level 10 Exchange 5 Message Active 7 days ago Expert Comment by: