[ale] sendmail /etc/mail/ip_allow

[Chris Ricker]

On 18 May, David Hamm wrote:
> Where could I find info on the /etc/ip_allow file?  

I gather you're running Red Hat?  They ship with the cf file configured
to use Claus Aßmann's (don't think I'm not proud of myself for getting
that ess-set to work ;-) rule sets for relaying mail; see his web page
at http://www.informatik.uni-kiel.de/%7Eca/email/check.html for all the
details or read through your sendmail.cf file if you grok those.

Basically, though, here's my understanding of Red Hat's additional
sendmail files.

/etc/mail/deny:
	flat text file of user at domain <tab> error msg, one per line
	and where "user@" and " <tab> error msg" are optional, of people
	to reject and where to tell them to go.

	this has to be converted to the database deny.db by something
	like makemap -v /etc/mail/deny < /etc/mail/deny

/etc/mail/deny.db
	see above

/etc/mail/ip_allow
	flat text file of sources to relay from, in dotted quad
	notation, one per line

/etc/mail/name_allow
	flat text file of sources to relay from, in domain name
	notation (not sure what it's actually called; foo.bar.com, for
	example), one per line

/etc/mail/relay_allow
	flat text file of sites to relay to, in either dotted quad or
	domain name notation, one per line

Be aware that I sometimes wonder if my understanding is right, since
name_allow and ip_allow seem almost redundant.  That's what the cf file
seems to suggest, however.

later,
chris

--
Chris Ricker                                        kaboom at gatech.edu