smtp relay for windows

akhalighi
akhalighi used Ask the Experts™
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Hi

Our new exchange server is hosted by a vendor . we have many legacy applications that are sending eails everyday. these apps doesn't support authentication methods that are required for using new exchange server. I am thinking about having a SMTP Relay installed in our internal network to accept incoming emails from legacy apps and forward them to external exchange ;
- any suggestions ? whay app should I use ?
- do I need to ask our vendor to set settings on external exchange to accept incoming messages from the relay ?
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Commented:
You could use AuthSMTP it will cost you $56 a year but it should do the trick.
www.authsmtp.com
Commented:
You could use windows builtin smtp service which can be installed with iis
Dave HoweSoftware and Hardware Engineer
Commented:
I certainly wouldn't pay for a solution. if the builtin MS IIS SMTP service (suggested by saimirka) doesn't do the trick, then any free email server should do as an internal-only relay (I used exim for a fair while because it can do rule-based routing; there isn't a native windows version as such, but it runs fine on windows if you first install cygwin).

what is it you need to do with the new server that your internal apps can't?
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Recommending Postfix, based on Linux. Looks solid that would correspond to your needs: http://www.postfix.org/
Dave HoweSoftware and Hardware Engineer

Commented:
postfix isn't bad, and comes with ubuntu, but is unstable on windows. I guess it depends on if the end user is willing to use a linux box for this task, or wants something that can run on existing windows infrastructure.
I recommend postfix out of my experience, I find it very scalable, but indeed if the user or administration wants windows product or apps running on windows servers...
Dave HoweSoftware and Hardware Engineer

Commented:
I prefer exim, but I guess that's just which distro you are used to - postfix is one of the two default offerings of ubuntu (the other being sendmail) but I find Exim more flexible in its routing rules and the TLS support is slightly better. Postfix is unreliable on cygwin though, and exim rock solid, which is why I suggested it, but there is little to choose between the two on a non-windows platform.

I guess it really matters what it is that the target server requires and their current apps can't supply.

Author

Commented:
Thanks for all your suggestions.. this is a pure windows enviornment :( I tried SMTP that comes with windows 2008 IIS but I didn't see any options to get it connected to our external mail server. any other windows based ideas ?

Author

Commented:
maybe I can give more details about my scenario ;|

we have a bounch of batch files that are using postie.exe to send emails using our internal exchange server. as far as I can see this version of posti doesn't use any credentials ( username/password) in the command line.

our new exchange server address is different and it requires authentication : let's say : mail.exchange.vendor.com

I want to setup a relay to do the outbound authentication ; so that in the batch files we just need to change host address from old exchange to the new relay. this will save a lot of manual work.

Author

Commented:
I actually got this to work with windows IIS ; I will write a full post in my blog and post it here ; so that everyone can use that.

Thanks for all your helps .

Author

Commented:
thanks

Author

Commented:
Thanks Foks

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