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There are only a
few solutions.
1. Control relaying via
IP address or IP block. This only works if your users are in a controlled
network (or at least have fixed Internet IPs).
2. Control relaying
based on esmtp authentication. This is implemented in Courier by
default. If you set up an account for authentication, then it will be
allowed to relay if it authenticates the connection. See
http://www.courier-mta.org/install.html#esmtpauth.
Just don't make the mistake of enabling "AUTH_REQUIRED" or your incoming mail
will die.
3. Control relaying
based on the From address. This is very insecure as anyone can fake a from
address using a standard mail client. I'm not sure Courier even implements
this.
BTW: Last time I
tried to setup authentication between Courier and Outlook Express, I didn't have
any luck. So if you figure it out let me know.
Bowie
|
- RE: [courier-users] realy error message Dirk Kulmsee
- Re: [courier-users] realy error message Paeddy
- [courier-users] Re: realy error message Bill Michell
- Re: [courier-users] Re: realy error message Paeddy
- RE: [courier-users] Re: realy error message Bill Michell
- [courier-users] Re: realy error message Sam Varshavchik
- Re: [courier-users] Re: realy error messa... Paeddy
- [courier-users] Re: realy error mess... Sam Varshavchik
- Re: [courier-users] Re: realy error ... Paeddy
- Re: [courier-users] realy error message Bowie Bailey
