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Exchange 5.5 and relaying

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by rlevesque 2 views

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I wanted to make sure that my server does not allow spam relaying. SO, under the IMC configuration for Routing, I checked the option Route only if client/host is authenticated.

Now, the problem I have is those using POP3 connections to my email server, cannot send emails to anyone that is not in the global list on the server. They will get a Error 550, relaying not allowed error even though I have the option "My server requires authentication" checked on, under Outgoing mail Server.

I have verified the setings for these POP3 users, and know their login names and passwords work fine. they can receive the emails, and send to those on the global list without problems. they just can't send to email addresses on the outside.

4 replies

by searogue

Hi, It could be YOUR provider doesn't have their server set to allow any kind of relaying, if this is the case, it will NOT work. I know first hand, that is how my provider is set & setting up my own mail server & trying to send from it through my provider won't work. The provider says, they will not allow this period.

HTH,
Bets Regards,

Tony

by rlevesque

Unfortunately, if I remove the "route only if host/client is authenticated" and thus allow anyone to relay, there is no error and it works fine.

By only requiring an authentication on my server, the error occurs and it actually states that someone@aol.com (for example), is not an authorized account on the email server. When I remove the routing restriction, and try sending the email to someone@aol.com, it sends fine.

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