It just came to my attention that my domain is getting rejected for
what appear to be Anti-SPAM / DNS related issues. Could one of the DNS
gurus on the list check me on what I think is wrong?
My mail server is sassafrass.softlock.com (204.165.216.231). We are
suddenly getting bounces, with log messages as follows:
Aug 17 08:32:07 sassafrass qmail: 934893127.225645 delivery 52940:
failure: Connected_to_212.54.64.155_but_sender_was_rejected./
Remote_host_said:_555_does_not_resolve_-_check_your_DNS_(#5.1.2)/
Aug 17 12:40:02 sassafrass qmail: 934908002.875160 delivery 53661:
failure: Connected_to_195.60.31.17_but_sender_was_rejected./
Remote_host_said:_501_<[EMAIL PROTECTED]>..._Sender_domain_must_exist/
Aug 17 13:17:05 sassafrass qmail: 934910225.563674 delivery 53788:
failure: Connected_to_199.246.69.20_but_sender_was_rejected./
Remote_host_said:_550_'<[EMAIL PROTECTED]>'_sender_address_target_
'softlock.com'_is_not_a_valid_e-mail_domain./
'softlock.com' has an MX record pointing to
'sassafrass.softlock.com.' Sassafrass resolves to 204.165.216.231. There's
also an A record for 'softlock.com' that points to 208.218.134.68. Neither
'softlock.com' nor 'sassafrass' have PTR records for reverse DNS, which I
believe is the problem. I'm trying to get the DNS admin to fix this, but is
there anything else wrong here while I'm at it?
Part of the mystery is why this seems to be suddenly happening. One
of the recipients causing an error above went through fine on August 5th.
And there was a deferral here which doesn't make sense:
Aug 17 13:40:53 sassafrass qmail: 934911653.029886 delivery 53856:
deferral: Connected_to_207.69.231.11_but_sender_was_rejected./
Remote_host_said:_450_<[EMAIL PROTECTED]>...
_Sender_domain_not_compliant_with_RFC_822,_section_6.2.7/
I've read 6.2.7 (Explicit Path Specification) and I don't see what
that has to do with anything in the sender domain.
--
gowen -- Greg Owen -- [EMAIL PROTECTED]
