Problems in internet mail service and SMTP routing and OWA

[Harish77]

Let me describe the problems one by one.

The exchange server configurations:

We are running Exchange Server 5.5 with Exchange Service Pack 4. We have configured two domains (DNS) in this server say "xyz.com" and "abc.com"(names are fictious). We have configured our corporate email addresses for these domains.

We have configured the server for the "internet mail services" and "NT user accounts" for validating the users.

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Problems for people out side the office network

System works perfectly fine for:

Sending/receiving mails from our office using the SMTP address of ISP (What I feel is, this particular server may not be having any routing restrictions as of now, but as and when they bring routing restrictions we will face problems).


System doesn’t work for:

The people out side the network say in other office and people who are mobile(Laptops) are not able to send any mails using their ISPs SMTP address.(i.e. using the abc.com or xyz.com)


Inside the office network we are using the ISPs outgoing SMTP address and the system is working perfectly fine.


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Problems for the site hosted

The hosted sites in our server use CDONTS to send mails which in turn uses the SMTP server. When we are doing this the IIS is hanging abruptly.

This problem is temporarily solved by changing the port in the SMTP server in IIS form 25 to 9025.

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Problems in outlook web access

Outlook web access Works for

1. Sending mail from somebody@abc.com to somebody@abc.com Sending mail from somebody@xyz.com to somebody@xyz.com, Receiving mails from somebody@yahoo.com (Any external domain) to Somebody@abc.com or somebody@xyz.com

Outlook web access doesn't work

1. Sending mail from somebody@abc.com to somebody@yahoo.com


For your Reference:

The DNS server, The Exchange server and the IIS server is on the same machine.


Thanks in advance

 

[Guest_imported]

On your exchange server Internet Mail Service connection tab "enable all users".. stop and start IMC service..
Let me know if it worked

 

[Harish77]

hi Vibiana,

I couldnot find out "Enable all users".. in the connection tab . Can you be please more specific in this regard.

And if it is the two check boxes which you are specifying then it is unchecked . I meant the chebox which says "Client can only submit if homed on this server" and "Client can only submit if authentication account matches submission address".

Looking forward for your help

Regards
Harish

 

[Duker44]

A few thing's you should check.
Everything you have said sounds like a DNS issue.
You mentioned your running a DNS on your local servers.
Is the Primary and Secondary DNS Records for your abc.com pointing to your DNS servers? And are the IP's correct?
Do you have any forwarding records in your DNS server?
"this can be checked by hitting the properties on the "server icon" in the DNS MMC " There should be a forwarding tab. If it's blank, you need to enter a few outside DNS servers. It's used to resolve a DNS record if your server dosn't know who XYZ.com is. It will foward the request to another server in that list to get an answer. "A must have"

Also make sure your DNS servers are pointing to the Public IP address and not your internal private Ip's since there not reachable from the internet.

Goodluck!
-Duker44

 

[GWINTO]

Is the reroute incoming SMTP mail radial button for the connector checked (under the routing tab)
If not check it and add xyz.com and abc.com to the routing table to ensure that they are routed internal

hope it works

regards

 

[timmi]

I don't know if this will help, but when we had to close a relaying security hole in Exchange 5.5 sp4, remote users using Outlook or Outlook Express suddenly could not send using their ISP's until they went into Tools - Accounts - Preferences - Servers and clicked the box that says "My server requires authentication." This was not the default in Outlook so it had to be done on each client machine, unless they used Netscape mail, which was not effected.