I have an Exchange 5.5 Server installed on WinNT 4.0 that was receiving and forwarding SMTP messages from Win2k Server on the same domain. I rebooted the server yesterday and now any messages coming from the Win2k server are not being sent, I am getting all of them in the Administrator mailbox as Notification: Inbound and Outbound failures. The way it works is all our email comes in thru a FreeBSD system, which when it sees who the mail is to it will forward it to the correct server. Which is our Exchange Server, the SMTP messages are sent to our Exchange Server which then forwards them to the FreeBSD system, which in turns sends them to the correct email server, which sometimes is our Exchange Server or another server in our Corporation. I believe it is a permission issue somewhere in Exchange, but I'm not sure where. Can anyone help me please!!! I have looked at the permissions on the Organization, Site, Configuration, and Recipients holders, as far as I can tell it is fine, can anyone tell me what they should be so I can compare?
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Exchange not sending SMTP messages
- Thread starter billiejo
- Start date
rubbaninja
MIS
What kind of undeliverable are you getting?
few things possible:
DNS change (can you resolve where your sending to on the machine thats not working anymore?)
Other items could exist too. So hard to say, the NDR will give you a huge clue on whats wrong.
Sounds like DNS issue? Ip configuration change? If you go through firewalls or routers, was there a routing change?
Turn on exchange logging also, exchange logs are kept in the exchange directory.
Check your Event viewer too, turn on security logging to find logon failures.
Hope that starts you in the right direction.
few things possible:
DNS change (can you resolve where your sending to on the machine thats not working anymore?)
Other items could exist too. So hard to say, the NDR will give you a huge clue on whats wrong.
Sounds like DNS issue? Ip configuration change? If you go through firewalls or routers, was there a routing change?
Turn on exchange logging also, exchange logs are kept in the exchange directory.
Check your Event viewer too, turn on security logging to find logon failures.
Hope that starts you in the right direction.
- Thread starter
- #4
All of our mail comes in and goes out of the same system which is a FreeBSD server. The server that is sending messages using SMTP is the only thing that is failing. All other messages sent using Outlook work fine. When the SMTP messages fail I receive the following messages in the Administrator mail box:
Inbound Mail Failure:
The following recipients did not receive the attached mail. Reasons are listed with each recipient:
<TAZ> TAZ
MSEXCH:IMS:florence.ds.adp.com:CPCC:ROCKY 3550 (000B09B6) 550 5.1.1 <TAZ>... User unknown
The message that caused this notification was:
Outbound Mail Failure:
A mail message was not sent due to a protocol error.
553 5.5.4 <TAZ>... Domain name required for sender address TAZ
The message that caused this notification was:
In my Exchange Server I have the Internet Mail Service Connection Properties configured to forward all messages to host. And the host is our FreeBSD Server. We have recently changed the mailhost server. But I changed the server Exchange was pointing to a week ago, and everything has been working fine. The only thing I did not do when I made this change was reboot the Exchange Server, however I did restart the services and everything was working fine. Would rebooting the Exchange server cause additional changes to be made that starting and stopping the services would not? I hope this information is a little more helpful, please let me know if you have any other suggestions.
Inbound Mail Failure:
The following recipients did not receive the attached mail. Reasons are listed with each recipient:
<TAZ> TAZ
MSEXCH:IMS:florence.ds.adp.com:CPCC:ROCKY 3550 (000B09B6) 550 5.1.1 <TAZ>... User unknown
The message that caused this notification was:
Outbound Mail Failure:
A mail message was not sent due to a protocol error.
553 5.5.4 <TAZ>... Domain name required for sender address TAZ
The message that caused this notification was:
In my Exchange Server I have the Internet Mail Service Connection Properties configured to forward all messages to host. And the host is our FreeBSD Server. We have recently changed the mailhost server. But I changed the server Exchange was pointing to a week ago, and everything has been working fine. The only thing I did not do when I made this change was reboot the Exchange Server, however I did restart the services and everything was working fine. Would rebooting the Exchange server cause additional changes to be made that starting and stopping the services would not? I hope this information is a little more helpful, please let me know if you have any other suggestions.
rubbaninja
MIS
go to and enter your mail server ip and click "do stuff". See if you have reverse DNS configured.
From what I remember and experienced this is because the outside server cannot resolve a name.
"Domain name required for sender address TAZ"
I hope that is it. Other than that recommendation I don't know what it could be.
Good Luck
From what I remember and experienced this is because the outside server cannot resolve a name.
"Domain name required for sender address TAZ"
I hope that is it. Other than that recommendation I don't know what it could be.
Good Luck
- Thread starter
- #6
rubbaninja
MIS
If its all internal then check the dns settings on the machine and server.
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