[J-core] [Meta] The J-Core mail server seems to be sending bad EHLOs

[Rob Landley]

On 09/03/2016 04:59 AM, Robert Ou wrote:
> Hi,
> 
> My mail server claims that the J-Core mailing list servers are sending
> a EHLO command with an argument of "14-04-02-GM". AFAIK this is not
> proper because EHLO should be set to a fully qualified domain name if
> one is available (one is obviously available for a publicly-accessible
> mailing list server).
> 
> Also, the IP address that this mailing list uses to send outgoing mail
> fails the "forward-confirmed reverse dns" test, meaning that looking
> up the IP address (72.38.147.104) back into a hostname
> (s72-38-147-104.static.comm.cgocable.net) and then back into an IP
> address (you get an NXDOMAIN) does not match the original IP address.
> 
> These issues might be related to why this lists' emails seem to be
> getting unusually-high spamminess.

I've forwarded this to a couple people. and am reading postfix
documentation myself.

Thanks for the heads up,

Rob