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Obsolete Releases => SME Server 7.x => Topic started by: jjwinter on July 25, 2010, 03:03:50 PM

Title: SME 7.5.1 as Email Gateway
Post by: jjwinter on July 25, 2010, 03:03:50 PM

Can SME 7.5.1 be used as an Email Gateway for anti-spam purposes? My client currently has no server, he just uses POP3 with his email host and gets his email via Outlook. Changing MX records is not a possibility.
He has DSL.

Could I go DSL----SME----XP Workstations

And have SME filter spam?

Title: Re: SME 7.5.1 as Email Gateway
Post by: Stefano on July 25, 2010, 03:38:39 PM

yes.. search for fetchmail here and in the wiki

Title: Re: SME 7.5.1 as Email Gateway
Post by: jjwinter on July 25, 2010, 03:41:36 PM

Thanks for the quick response, I will test it out.

Title: Re: SME 7.5.1 as Email Gateway
Post by: jjwinter on July 27, 2010, 05:50:49 AM

I've been playing with Fetchmail on SME 7.5.1. First let me describe the environment I want to put it in:

Dynamic DSL-----SME----Workstations using Outlook (POP3)

My client has no domain name. The server is server.local   The email they check is through their ISP. I understand that Fetchmail can grab external email and put it in their internal email boxes, but I run into reverse DNS trouble when I try to send because the internal addresses are not real email addresses. I want to send using their external addresses.

The goal in all of this is to take advantage of SME's spam filtering ability. Am I barking up the wrong tree here? Is what I am attempting possible?

Title: Re: SME 7.5.1 as Email Gateway
Post by: janet on July 27, 2010, 07:28:39 AM

jjwinter

You can easily run a real mail server using a dynamic connection and a free domain.

Quote

My client has no domain name. The server is server.local   The email they check is through their ISP.

Get yourself a free domain from dyndns eg yourcompany.dnsalias.com or whichever you prefer/choose.
Run "Configure this server" and change to this domain name instead of server.local as the main domain name. Also configure your dyndns account details so SME server will keep the dyndns account updated with your new external IP each time it changes.

Quote

I run into reverse DNS trouble when I try to send because the internal addresses are not real email addresses. I want to send using their external addresses.

In Server manager Email panel set the outgoing smtp server to be your ISPs smtp server eg mail.yourISP.com
Reconfigure your email clients to use the real external email address.

Alternatively you can disable the smtp proxy in server manager panel, and your email clients will send directly to your ISP. In that case use the SME server mail server for incoming but use your ISPs mail server for outgoing.

As a bonus you can test sending and receiving email using the new dyndns address and eventually convince the boss to use a real domain and a full mail server.

Title: Re: SME 7.5.1 as Email Gateway
Post by: jjwinter on July 27, 2010, 06:44:11 PM

Thanks for the instructions. I will be trying this out later today.