IT Answers » IMail

Sending email to addresses outside my domain

NewnanIT — Tue, 03 May 2011 19:45:12 +0000

I can only send email internally and when I try to send to an outside email address not in my domain I see errors that relaying is not allowed. I set up my account in Outlook from memory and might have missed a step. Our server is Imail Mail Server with unlimited licenses. Any ideas?

Sending Email Solutions

Kingriggins — Mon, 26 Oct 2009 17:24:20 +0000

Currently we have a POP3/SMTP email server (IMAIL). Our end users connect to it using Outlook. If we are on out local intranet or the end user’s local ISP’s are not blocking port 25, we are able to send emails without a problem. If they are blocking port 25, then we can’t send emails.

I’m looking for solutions to overcome this obstacle. Here are details about the network infrastructure and things we’ve tried:

We have business level cable internet provided by Cox Communications. We have a public IP tied to our public DNS record. This points to our Linksys RV042 router. The router directs all HTTP and SMTP traffic to our DNS server which is also our DHCP and email server. We currently only use port 25 for SMTP and have rules setup to only allow outgoing SMTP traffic from our email server’s IP address. We have PPTP server enabled on our router. We use Windows built in connection wizard to create a vpn connection to the PPTP server of the router and can successfully make a connection. This connection will allow access to network drives etc, but it will not allow us to send email.

If you connect to a VPN, doesn’t it’s traffic bypass the local ISP’s blocking of port 25?

We have tried telling Outlook to only send/recieve using the VPN connection. We’ve tried creating client to gateway groups inside the router and using Greenbow and Shrewsoft’s VPN client to connect. We can connect, but still can’t send. We’ve enabled IMAIL to use an additonal port. I notice when I do an ipconfig, the gateway always says the exact same as the IP address of the vpn connection instead of what the gateway should be inside the remote network.

Would making entries in LMHOSTS file make any difference?

I’m at a loss and would love some ideas from a different set of eyes.

Setting up multiple mail domains while the exchange server is on a single active directory domain

ITKE — Tue, 06 May 2008 13:47:00 +0000

Last year we had one active directory domain. For all intensive purposes, letâ€™s call it abc.com. With that domain, we had one IMail domain, mail.abc.com, with proper DNS records and such.

Six months ago, our company decided to branch off. So we created another IMail domain, xyz.com, but we still only used one active directory domain. Currently, we have one active directory domain, abc.com, and two IMail domains, mail.abc.com and mail.xyz.com. All our users are setup as POP3/IMAP through various e-mail clients, IE Outlook, Entourage, webmail etc.

We are currently setting up a Windows 2003 server for Exchange 2003 Enterprise. We set the server up as a domain controller for abc.com and went through all the other necessary steps. Iâ€™ve gotten so far as to setup two different mailbox stores and two different public folder stores for mail.abc.com and mail.xyz.com. Here is where my problem comes into play.

I donâ€™t know how to specify, through active directory, the mail domain for specific users. I canâ€™t have all the users be set as @abc.com when creating exchange mailboxes as their clients only know them through their @xyz.com address.

I guess what I am asking is how do I setup multiple mail domains, for @abc.com and @xyz.com, while the Exchange server is on the abc.com active directory domain?