Co-existance of relay for addresses and SMTP auth works fine.....that is
exactly how I have it set up.....In my case I provide high speed access to
many companies, but I don't deal with any dial-up.....so outside my
buildings they have to turn on SMTP Auth. I simply sent an email to
everyone stating that if sending mail from outside their networks then check
off the box that says their outgoing server requires authentication. I have
found one problem however.....It is not an IMail issue but some ISP's son't
allow mail to be sent through servers other than their own.....for those
users who encounter that issue I tell them just to use the web mail or get
that ISP's outgoing mail settings.
Russ Eisenberg
Director of IT Services
Worldwide Security Network
718.380.0209
[EMAIL PROTECTED]
----- Original Message -----
From: "Matt Walkowiak" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Cc: <[EMAIL PROTECTED]>
Sent: Thursday, August 16, 2001 10:29 AM
Subject: RE: [IMail Forum] Turning on SMTP Auth out of the blue...
See below for the full message...
>> My question is, if I turn SMTP Auth on out of the blue, will that cause
any
>> noticeable effect to any of my customers that still CAN send e-mail off
of
>> me?
>
> no effect really, they just won't be able to send any mail. :))
Ok, my company owns a /21 block of IP addys, lets say xxx.xxx.120-127.xxx.
I'd like all of these computers to be able to send e-mail off of my Imail
computer, and I assume the best way to do that is with relay for addresses.
I also would like anyone else that has a pop3 account with me to be able to
send mail off of my server (one COMPLETE set of instructions, where I can
tell my users to enter X (and Y) into the fields, rather than telling them
to contact their ISP...) and I assume I do that with SMTP Auth.
If I turn SMTP Auth on, will that make it difficult for people to be allowed
to send mail using relay for addresses? can they both co-exist in a nice
friendly fashion? I'm getting lots of pressure to turn smtp auth on, but I
don't want to turn it on if it breaks my other working connections...
thanks again!
Matt
-----Original Message-----
From: Len Conrad [mailto:[EMAIL PROTECTED]]
Sent: Thursday, August 16, 2001 6:36 AM
To: [EMAIL PROTECTED]
Subject: Re: [IMail Forum] Turning on SMTP Auth out of the blue...
>When we built our Imail server a few years ago, all of our customers bought
>internet access thru us, so we limited who could send mail by only allowing
>a certain range of IP addy's to send / relay messages.
relay for addresses
>Since then we have sold that portion of our business, but most of the
e-mail
>boxes stayed with us. Since their IP's changed, they now cannot send mail
>off of me. What I have been telling them is to call their local ISP and
ask
>them for the SMTP information.
good idea. they should relay out through their access provider
>My question is, if I turn SMTP Auth on out of the blue, will that cause any
>noticeable effect to any of my customers that still CAN send e-mail off of
>me?
no effect really, they just won�t be able to send any mail. :))
>Will my customers have to change their e-mail clients if they are
>working fine now?
yes, go here: http://www.mailops.com, Robert Fehn�s most excellent site,
and click Help:SMTP AUTH for the gory details.
>What else can I expect?
Dealing with people, expect the worst, hope for the best ?
Len
http://MenAndMice.com/DNS-training
http://BIND8NT.MEIway.com : ISC BIND 8.2.4 for NT4 & W2K
http://IMGate.MEIway.com : Build free, hi-perf, anti-abuse mail gateways
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