Exchange 2007: POP3 ERR Command is not valid in this state
Summary: POP applications report ERR "Command is not valid in this state" after supplying credentials. To verify you try telnetting to POP port 110 of your CAS server:
Telnet CASServer 110
User Myaccount
Pass Mypass
ERR Command is not valid in this state
Resolution: Open your Exchange Shell and enter:
Set-PopSettings -LoginType PlainTextLogin
Restart your POP3 service
James Chong (MVP)
MCITP | EMA; MCSE | M+, S+
Security+, Project+, ITIL
msexchangetips.blogspot.com
Telnet CASServer 110
User Myaccount
Pass Mypass
ERR Command is not valid in this state
Resolution: Open your Exchange Shell and enter:
Set-PopSettings -LoginType PlainTextLogin
Restart your POP3 service
James Chong (MVP)
MCITP | EMA; MCSE | M+, S+
Security+, Project+, ITIL
msexchangetips.blogspot.com
posted by jamestechman at 4:28 PM
21 Comments:
I got this problem when I installed the RollUp 4 update.
I tried changing login settings to plain text in the management console at first, however that didn't help.
Following your instructions solved the problem. Thanks!
Worked like a charm. Thanks!!
But it will no more be a secured login..
spot on
You are star, worked.
Thanks for this info, I couldn't understand why this third party app would login to smtp fine but not pop3, your info sorted it.
thanks a mllion worked
Spot on....Good man
Love your work. After I have wasted about one hour trying to get this working your post saved the day.
It's very dangerous over Internet, without SSL!
I've been able to fix the problem that my computer was going through the last few weeks and that was possible only by reading this blog.
Usually I like to use other tools for my troubles. But once I was in compound situation, which required the best instruments for solving. I was lucky and quickly noticed a tool on a soft forum. It astonished me a lot and could solve out my old and present troubles for seconds. To my mind it would be suitable for this problem - edb recover.
Thank you very much, this too worked for me!
Works perfect! Thank you.
Thanks James - appreaciate the PS command here to get POP working properly with plain txt
Such a nice blog, this is one great site that I will make sure I return, and visit again!
Thanks! nice job.
Works nice! Thanks!
You genius been battling for ages - answer was so simple.
..or you could make sure your client uses SSL.
Like stated above, disabling SSL is not a safe option over the internet!
In outlook for example, go to account settings, 'more settings', advanced, and check 'This server requires an encrypted connection (SSL)'
Thanks for this info!
Post a Comment
<< Home