Solved

Problem receiving email from outside the company

Posted on 2011-02-26
4
983 Views
Last Modified: 2012-05-11
I am running Exchange 2010 and all of a sudden today, we cannot receive email from outside the company.  We can receive email from within the domain but internet email is not working.  All of my databases are up.  It seems like to me that our domain (mail.apptricity.com) is not getting reverse dns properly but I don't know what to do about it.  Please respond to me at bbonner50@verizon.net since I cannot receive email at my normal work email, bbonner@apptricity.com.  thanks!
0
Comment
Question by:bbonner
4 Comments
 
LVL 76

Accepted Solution

by:
Alan Hardisty earned 500 total points
ID: 34989128
You may be suffering from Backpressure! Please have a read of my article which should help you quickly fix the problem and then you can get your mail flowing again quickly:

http://www.experts-exchange.com/Software/Server_Software/Email_Servers/Exchange/A_4259-Exchange-2007-2010-Backpressure-Quick-Fix.html
0
 
LVL 9

Expert Comment

by:sshah254
ID: 34989134
I tried "telnet apptricity.com 25" - the response was "connection refused".

Somehow it seems like the SMTP connector is not running.  Hence no incoming emails from outside the domain.

Ss
0
 
LVL 49

Expert Comment

by:Akhater
ID: 34989352
I have telnet to your exchange server and tried to send an email I got back a 452 4.3.1 Insufficient system resources error which clearly shows a backpressure problem make sure to have enough free space one the disk holding your smtp queue and follow Alan's article



220 appt-exchange2.apptcentral.local Micros
ehlo
250-appt-exchange2.apptcentral.local Hello
250-SIZE
250-PIPELINING
250-DSN
250-ENHANCEDSTATUSCODES
250-STARTTLS
250-X-ANONYMOUSTLS
250-AUTH NTLM
250-X-EXPS GSSAPI NTLM
250-8BITMIME
250-BINARYMIME
250-CHUNKING
250-XEXCH50
250-XRDST
250 XSHADOW
mail from
501 5.5.4 Unrecognized parameter
mail from:me@you.com
452 4.3.1 Insufficient system resources
0
 

Author Closing Comment

by:bbonner
ID: 34989656
Thank you so much!
0

Featured Post

How your wiki can always stay up-to-date

Quip doubles as a “living” wiki and a project management tool that evolves with your organization. As you finish projects in Quip, the work remains, easily accessible to all team members, new and old.
- Increase transparency
- Onboard new hires faster
- Access from mobile/offline

Join & Write a Comment

We are happy to announce a brand new addition to our line of acclaimed email signature management products – CodeTwo Email Signatures for Office 365.
Scam emails are a huge burden for many businesses. Spotting one is not always easy. Follow our tips to identify if an email you receive is a scam.
In this video we show how to create a User Mailbox in Exchange 2013. We show this process by using the Exchange Admin Center. Log into Exchange Admin Center.: First we need to log into the Exchange Admin Center. Navigate to the Recipients >> Mailb…
In this video we show how to create a Shared Mailbox in Exchange 2013. We show this process by using the Exchange Admin Center. Log into Exchange Admin Center.: First we need to log into the Exchange Admin Center. Navigate to the Recipients >> Sha…

757 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

21 Experts available now in Live!

Get 1:1 Help Now