"SMTP + DNS does provide the MTA-failover with multiple MX
preferencse. But do the SMTP clients in mail programs sending mail
to SMTP servers do lookups for MX records or for A records?"
I've never seen the config in which the actual SMTP, not the MTA, becomes
redundant. Can this work, and if so, how?
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of Len Conrad
Sent: Thursday, August 17, 2000 10:35 PM
To: [EMAIL PROTECTED]
Subject: RE: [IMail Forum] How to force local mail to
getexternallyscanned
>1 Local WEB mail still won't get scanned....not a huge deal, but...?
No.
vbg I can't see anyway to break this loop:
HTTP => SMTPD => queue => SMTP- => local mbx
>2 If I point all my mail clients' smtp settings to the virus scanner using
>dns(assuming I separated my DNS entries for SMTP and POP...)
You can never have too many hostnames. You can really have not enough.
>...if the virus scanner dies(and they do), then essentially all
>local users lose ability to
>send mail.....?
Yep, just like SMTP AUTH dying.
SMTP + DNS does provide the MTA-failover with multiple MX
preferencse. But do the SMTP clients in mail programs sending mail
to SMTP servers do lookups for MX records or for A records?
If the former, then putting putting your AV box at MX 10 and Imail at
MX 20 would immunize you to AV box failing. But if the SMTP client
looks up A records, then a dead AV box kills all local clients outgoing
mail.
Len
http://BIND8NT.MEIway.com: ISC BIND 8.2.2 p5 installable binary for NT4
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