[courier-users] Problem with ipv6 and HELO checks

This is a discussion on [courier-users] Problem with ipv6 and HELO checks within the Courier-Imap forums, part of the Mail Servers and Related category; Hi, Still using ancient courier-0.44.2-1.7.3, I'll upgrade real soon now, I promise :-) I'...


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Old 03-06-2005
Martijn Lievaart
 
Posts: n/a
Default [courier-users] Problem with ipv6 and HELO checks

Hi,

Still using ancient courier-0.44.2-1.7.3, I'll upgrade real soon now, I
promise :-)

I'm having problems with HELO checks and IPv6. I receive a lot of mail
over IPv6 and the only problem I had until now was with my Windows based
PDA that insisted on saying 'HELO Inbox'. I whitelisted the addressspace
my provider uses:

:2002:c2e5 allow,BOFHCHECKHELO=0

That works hunkeydory.

Now two friends want to mail me and they both cannot. One seems to have
correct reverse while the other has none. The first should work, but
doesn't, and I cannot white list either of them.

The relevant lines:

:2001:960:661:2 allow,BOFHCHECKHELO=0
:2001:838:3c6:0 allow,BOFHCHECKHELO=0

The address that has correct reverse DNS is
2001:960:661:2:240:caff:fe15:8116. It has a CNAME from ip6.int to
ip6.arpa but AFAIK that should work and one should use ip6.arpa anyhow.

I did run makesmtpaccess. Anyone know how to whitelist those addresses?

M4



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