[RFCI-Discuss] is a reversename a must ?

[Matus UHLAR - fantomas]

On 23.01.08 12:02, Jeff Pang wrote:
> At my end I disagree to reject messages by remote host who has no rDNS.

> In fact many many email hosts (specially the interprise mail servers) have
> not rDNS, if we reject these messages,we will be complainted heavily.

please wrap your lines below 80 chars per line.

I am rejecting mail from IP's without valid hostnames on my personal machine
and I am going to do the same on our company's servers, but it requires some
work to do.

> AFAIK,most huge providers like Yahoo,Hotmail,GMX didn't check the rDNS (or
> check it but didn't reject messages follow the rDNS rule only),Gmail once
> checked,but now it doesn't.AOL checks,Earthlink once didn't check,but now
> it checks.

I expect more and more of them to check in the future.

Our customers use to complain when they don't have RDNS, because many
servers refuse mail from IPs w/o RDNS, and we are trying to give them DNS
records before they start complaining.

I think you can simply and safely reject based on missing RDNS, no big
problems will appear to you and you will receive much less of spam.

-- 
Matus UHLAR - fantomas, uhlar at fantomas.sk ; http://www.fantomas.sk/
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