Solved

No longer recieve APC UPS Emails and Phone System emails through Exchange 2003

Posted on 2007-11-16
18
1,197 Views
Last Modified: 2009-12-16
I did not setup this Exchange 2003 server, but I did setup the APC UPS'.  They used to email me whenever the power went out, brown out, etc. and out of nowhere they stopped (when I'm not exactly sure because I only received messages during blackouts or brownouts and noticed it stopped on the last blackout).  When I setup the APC's, all I had to do was put in the Exchange server IP and a "From" email address and it worked fine for several months.

I suspect that this is due to some changes (maybe updates?) to the Exchange Server but I haven't been able to pinpoint it.

The reason I suspect the Exchange Server is that nothing changed in the APC UPS' (we have two and neither one of them work and stopped working at the same time I think-just have a generic "Email message failed" in the log) and we implemented a new feature in our Mitel phone system that emails us our voice messages in WAV format.  So far we have not been able to get it to work at all.

The phone company has been out here 3 times trying to fix it but they know nothing of Exchange 2003.  They keep telling me that Exchange needs to be set to accept anonymous email, which I'm assuming they are talking about relaying.  I allowed relaying in the ESM from the Mitel system's IP and also the APC IP's (even though this was not done before), but it still doesn't work.  The Mitel log is also very generic and just says "email failed" or occasionally "socket error."

Any help would be greatly appreciated.
0
Comment
Question by:JosephGreenwald
  • 9
  • 7
18 Comments
 
LVL 104

Expert Comment

by:Sembee
ID: 20301509
If you are receiving email from outside then it will be accepting email from anonymous sources. However if the email comes in from another host - for example an external spam filtering service, then you could be looking at a restriction on the SMTP virtual server stopping the email being delivered.
If the email is going to internal users only then relay settings will not be a problem.

Simon.
0
 

Author Comment

by:JosephGreenwald
ID: 20301582
Thanks for the reply.

Yes, we are receiving email from outside recipients just fine.  We do have an external spam filtering service (Postini).  The Netscreen firewall is configured to only allow connections from Postini's IP's to the Exchange server, but I figured since it wasn't going out over the internet then that shouldn't be a problem, right?  I checked my Postini quarantine for the heck of it earlier and it was not quarantining any of the messages.
The email will only go to internal users with email addresses on our Exchange server.

I forgot to mention earlier that I already restarted Exchange services and it has been several hours so any settings should've taken effect already.
0
 
LVL 104

Expert Comment

by:Sembee
ID: 20301794
Rebooting the server will not help if there have been restrictions placed on the SMTP virtual server. You need to remove those restrictions. ESM, Servers, <your server>, Protocols, SMTP. Ensure that there are no connection restrictions, or add the servers that need to send email to the list.

Simon.
0
 

Author Comment

by:JosephGreenwald
ID: 20301805
I think I have already done this, please see above where I stated:

"I allowed relaying in the ESM from the Mitel system's IP and also the APC IP's (even though this was not done before), but it still doesn't work. "
0
 
LVL 104

Expert Comment

by:Sembee
ID: 20301885
Relaying is different from connection restrictions. Your antispam service provider would have asked you to put restrictions on the connection for SMTP.

Simon.
0
 

Author Comment

by:JosephGreenwald
ID: 20301964
I do not see any restrictions on connections.  

Under the Access Tab for SMTP I have:
Under Authentication I have Anonymous Access, Basic Authentication, and Integrated Windows Authentication checked (nothing else).
Under Connection, I have the "All except the list below" checked and there are two domain names that we were getting unwanted mail from (ex-wives were emailing users when they weren't supposed to) in the list.
Under Relay I have "Only the list below" which contains 10.0.0.1 (255.0.0.0) and xxx.xx.xxx.xx (the external IP of the Mitel system), and "Allow all computers which successfully authenticate to relay" checked.
Is that what you were referring to?

I appreciate all your help.
0
 
LVL 104

Expert Comment

by:Sembee
ID: 20302177
Can the applications that fail to send be set to authenticate when they send?

Although one thing I do with UPS alerts is I bounce them off an external server - ISP for example. Then if there is an external address I don't have to worry about Exchange being up, as long as the internet connection is still live.

Simon.
0
 

Author Comment

by:JosephGreenwald
ID: 20302206
No, they cannot be set to authenticate.  They do not have this option.

Great idea about the UPS alerts, I'll have to try that.
0
Free Trending Threat Insights Every Day

Enhance your security with threat intelligence from the web. Get trending threat insights on hackers, exploits, and suspicious IP addresses delivered to your inbox with our free Cyber Daily.

 

Author Comment

by:JosephGreenwald
ID: 20316258
Anyone?
0
 
LVL 104

Expert Comment

by:Sembee
ID: 20319118
This site doesn't work like a forum. You cannot bump questions. No one new will look at a question once it has gone from the first page - which is about 6 - 8 hours at peak times. Also remember that everyone here are volunteers and not all are in your time zone - we give up our free time in between working to assist.

I notice that you have said it is an external IP address of the Mitel system in the list. Is that how Exchange sees it? I have seen a number of firewalls that do something to NAT that means the traffic appears to come from the internal IP address of the firewall, not the external address. For that reason I also do not recommend ever granting relay access to an entire subnet.

Simon.
0
 

Author Comment

by:JosephGreenwald
ID: 20320065
Thanks.  I didn't realize that you couldn't bump questions.

I am not sure if Exchange sees the Mitel system as the external address or not, but I just put it in there for good measure to see if that fixed the problem.  It did not.

I do not have the firewall setup to do any type of NAT between external and internal IPs.

The phone company seems to think that a reboot of the phone system will fix the problem, but since the APC UPS' are having the same issue I don't think that this will be fixed.
0
 
LVL 104

Expert Comment

by:Sembee
ID: 20320748
You don't actually know why the messages are failing from either product. It could be two different reasons. The most you could do is enable logging on the SMTP virtual server to see if it shows anything, but if the server is busy then it could generate a lot of logs to wade through.

Simon.
0
 

Author Comment

by:JosephGreenwald
ID: 20320800
I agree.  I do not know exactly why they are failing, but since the UPS' couldn't send email I was hoping that they were related since it is basically two types of external devices attempting to do the same thing.

Both devices only provide generic messages that say "email to user@domain.com failed."

As a last resort I will wade through the logs, but in the meantime I have been searching through APC support to find a solution.
An APC support page I found (http://nam-en.apc.com/cgi-bin/nam_en.cfg/php/enduser/std_adp.php?p_faqid=7957&p_created=1150395794&p_sid=u6i8TcRi&p_accessibility=0&p_lva=&p_sp=cF9zcmNoPTEmcF9zb3J0X2J5PSZwX2dyaWRzb3J0PSZwX3Jvd19jbnQ9MzUmcF9wcm9kcz0wJnBfY2F0cz0mcF9wdj0mcF9jdj0mcF9zZWFyY2hfdHlwZT1hbnN3ZXJzLnNlYXJjaF9ubCZwX3BhZ2U9MSZwX3NlYXJjaF90ZXh0PWVtYWls&p_li=&p_topview=1) says to us NSLOOKUP to find the MX records of my domain.  When I type NSLOOKUP and then my domain name I have no MX records in the results.  Could this be part of the issue?
0
 
LVL 104

Expert Comment

by:Sembee
ID: 20320989
That depends on how you have configured the SMTP server in the apc device. I usually set them to use a specific server, often the IP address. In a power failure scenario I cannot rely on DNS working correctly.

Simon.
0
 

Author Comment

by:JosephGreenwald
ID: 20321088
I have configured the APC device to use the SMTP server's internal IP address.

What I still don't understand in all of this is that nothing has changed in the Exchange server to cause this since the APC devices stopped working.  I was getting some DNS error messages in the event logs about a year ago that I got straightened out (see here for info: http://www.experts-exchange.com/OS/Microsoft_Operating_Systems/Server/2003_Server/Q_21940698.html), but I'm nearly positive that the APC's have been able to email me since after I fixed DNS.
0
 

Accepted Solution

by:
JosephGreenwald earned 0 total points
ID: 20369464
Well I figured out the issue.  Apparently when I setup Exchange to block certain email addresses from emailing us by using recipient filtering this was blocking it.  The strange thing is that I was doing this for several months and I never had any email issues.  This is a very busy law firm and I most certainly would've heard about it if any emails were not coming through.

Anyway, now both my APC's and the Mitel phone system work just fine sending emails to the domain.
0
 
LVL 1

Expert Comment

by:Vee_Mod
ID: 20391031
Closed, 500 points refunded.
Vee_Mod
Community Support Moderator
0

Featured Post

Are end users causing IT problems again?

You’ve taken the time to design and update all your end user’s email signatures, only to find out they’re messing up the HTML, changing the font and ruining the imagery. What can you do to prevent this? Find out how you can save your signatures from end users today.

Join & Write a Comment

Find out how to use Active Directory data for email signature management in Microsoft Exchange and Office 365.
ADCs have gained traction within the last decade, largely due to increased demand for legacy load balancing appliances to handle more advanced application delivery requirements and improve application performance.
In this video we show how to create an email address policy 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 Mail Flow…
In this video we show how to create a mailbox database 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 Servers >> Data…

744 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

12 Experts available now in Live!

Get 1:1 Help Now