• Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 178
  • Last Modified:

Windows NT - Running some sort of mail server, 550 not permitted

Hi

We had to swap the internet from a BT ADSL feed, to One Tel today.

Their was a main Windows NT Server that everything seemed to be recieving IP addresses from, linked to a router I could not get any details for.

The Server IP before the change was 10.0.0.1, and had a gateway of 10.0.0.253.


We purchased a new router and set all machines including the server to obtain IP automatically.

All machines can pick up IP address - but know we are unable to send external email from any of the machines.  

We noticed that on the client machines outlook was set to connect to 10.0.0.1, with the auto config the server IP had changed to 10.0.0.4 - we updated all clients so now outlook opens.  The problem is that we are unable to send external emails or recieve any external mails.

The server now has an IP of 10.0.0.4 , with a gateway of 10.0.0.2 (The new router we have installed)

When we send an email - it comes back to the inbox, within the message it states

"550 Relay not permitted"

Any ideas on what it could be

Thanks
0
Secureconcepts
Asked:
Secureconcepts
1 Solution
 
zkriegerCommented:
The problem is the ISP doesnt allow mail relay. that is you to send mail to their mail server to send out to a 3rd party mail server. the way around this is to get SNMP and POP3 server information from the mail provider and enter that directly to the clients, and have them login to the SNMP servers directly, rather than having your server act as a relay.

without detail on how your mail is setup (ie are you hosting it? is the company you get dsl from hosting it? etc) I cannot assit your furthur.

what you need to know:

who hosts your email service?
does the One Tel isp allow you to talk to other mail servers outside their network?
does your mail service provider accept connections from outside their network?
0
 
SecureconceptsAuthor Commented:
Will find out SNMP and POP 3 info from the Mail Provider - thanks
0

Featured Post

Free Backup Tool for VMware and Hyper-V

Restore full virtual machine or individual guest files from 19 common file systems directly from the backup file. Schedule VM backups with PowerShell scripts. Set desired time, lean back and let the script to notify you via email upon completion.  

Tackle projects and never again get stuck behind a technical roadblock.
Join Now