Solved

SMTP Connection from outside network will not send, 550 5.7.1 Unable to Relay

Posted on 2006-06-21
6
273 Views
Last Modified: 2008-01-09
Our entire office used to be setup on the same domain and lan. We had no issues this way and everyone's outlook was connected using Exchange as the account type. Now our office has split and half of the people are at a different location on a different domain. I set them up to connect over the WAN to my server and use IMAP/SMTP. Everyone can receive at the new office no problem but when it comes to sending we have issues. We can send to addresses that we host such as me@mydomain.com but cannot send to outside address such as @hotmail.com. For outside address we get the error:

 "Your message did not reach some or all of the intended recipients.

      Subject:      3334434
      Sent:      6/21/2006 12:25 PM

The following recipient(s) could not be reached:

      'me@hotmail.com' on 6/21/2006 12:25 PM
            550 5.7.1 Unable to relay for me@hotmail.com"

Like i said receiving is fine for the remote office and both sending and receiving work perfectly from the local office where the Exchange 2003 server is hosted from. I know the problem has to do with the Access and security properties of the SMTP Virtual server but am not sure where. I do require the outlook account to authenticate for outgoing mail but am not certain I am typing in the correct login name (ie "mydomain\username" or "username@mydomain.com"). Lastly I should mention that if I add the IP address of the remote client trying to send via SMTP to the relay restrictions area they are able to send, but I dont want to have to add every IP for every client whenever they want to send. Any help is much appreciated!!!!
0
Comment
Question by:ephobot
  • 2
6 Comments
 
LVL 1

Expert Comment

by:McRight
ID: 16955686
you have to add the remote subnet to the relay restrictions otherwise they are not entitled to send through the smtp virtual server
0
 

Author Comment

by:ephobot
ID: 16955948
oh nevermind! oh course right after i post my question i find the topic with the answer i needed. it turns out it was the fixup on my cisco pixfirewall the was interferring with SMTP. everything works great now though. thanks anyway. =D
0
 

Author Comment

by:ephobot
ID: 16955967
please close this topic
0
 

Accepted Solution

by:
CetusMOD earned 0 total points
ID: 17255651
PAQed with points refunded (500)

CetusMOD
Community Support Moderator
0

Featured Post

PRTG Network Monitor: Intuitive Network Monitoring

Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Follow this checklist to learn more about the 15 things you should never include in an email signature from personal quotes, animated gifs and out-of-date marketing content.
Marketers need statistics and metrics like everybody else needs oxygen. In this article we explain how to enable marketing campaign statistics for Microsoft Exchange mail.
To show how to create a transport rule 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 >> Rules tab.:  To cr…
This video demonstrates how to sync Microsoft Exchange Public Folders with smartphones using CodeTwo Exchange Sync and Exchange ActiveSync. To learn more about CodeTwo Exchange Sync and download the free trial, go to: http://www.codetwo.com/excha…

830 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