Mike,
If you _never_ expect any host or client, except those you list in Control
Access, to be accepted by IMail SMTP, then, yes you could use SMTP Security
settings, to restrict access. But if the IMail machines IP/hostname is in
any MX record, then you probably do not want to do that. Right now, one of
the IPs for the domain (63.67.194.2) answers and shows IMail on port 25. If
the primary MX host fails, this IP might be used by another mail server
trying to deliver to your domain. I'd suggest a secondary MX record and
another mail server that can handle your email when your primary is offline.
Not to imply there is anything 'wrong' with Len's or anyone else's mail
servers, but this is just good practice, to have a backup mail server and a
secondary MX record pointing to that host. And to understand the path email
might take, if there are failures in DNS, MX records and the machines
running the DNS and mail services.
Daniel Donnelly
________________________________________________________
----- Original Message -----
From: "Mike" <[EMAIL PROTECTED]>
To: "Imail Support" <[EMAIL PROTECTED]>
Sent: Monday, February 26, 2001 11:38 AM
Subject: [IMail Forum] Question on SMTP security
> Simple question; I'm using Len Conrad's IMGate as the MX for my domains
> (working great, thanks Len).
>
> Can I further cut down on spam by blocking all IP's but my own in the SMTP
> security tab? By doing so should only affect non listed IP's, correct. Any
> legit customers using SMTP Auth would also be blocked also correct? And
this
> would have no bearing on POP3/IMAP/Web?
>
> Mike
>
>
>
> Please visit http://www.ipswitch.com/support/mailing-lists.html
> to be removed from this list.
>
> An Archive of this list is available at:
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>
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