Re: [exim] SMTP error: subscribers are not permitted to dire…

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Author: Philip Hazel
Date:  
To: listrcv
CC: exim, W B Hacker
New-Topics: Re: [exim] SMTP error: subscribers are not permitted to directlyconnect to this mail server
Subject: Re: [exim] SMTP error: subscribers are not permitted to directly connect to this mail server
On Tue, 18 Apr 2006, listrcv wrote:

> Which RFC does specify that an MTA must have a static IP and DNS entries?


When the original RFCs were written *every* Internet host had a static
IP. It was taken for granted. That was the way the Internet worked. But
there was no DNS...

The newer RFCs don't mention this either (I suspect - I haven't read
every RFC). However, in practice, you will find it very hard to run an
MTA reliably without a static IP and reverse DNS. That's just the way it
is.

-- 
Philip Hazel            University of Cambridge Computing Service
Get the Exim 4 book:    http://www.uit.co.uk/exim-book