[time-nuts] Strange reports of bocked messages to timenuts
magne at samfundet.no
Sat May 17 05:20:22 EDT 2008
Dr. David Kirkby wrote:
> I've been receiving some emails which claim to come from my ISP saying
> my messages to timenuts have been blocked due to spam.
> A typical subject line is "[time-nuts] ***Your message was blocked***"
> But I've not sent a message!
The problem is not with you. All subscribers to the list received this.
What causes the email is that conwin.ie use a lookup service to discard
unwanted email (spam, scams, etc.). This lookup service seems to check
with rfc-ignorant.com that has a listing over domains that are not
compliant with the mail and dns related RFC's. Unfortunately
febo.com is listed here.
It seems febo.com (John's domain, and the host of the time-nuts
mailing lists) was listed at rfc-ignorant.org 2 1/2 years ago due
to a problem with the DNS record for meow.febo.com.
| Current Results for febo.com lookup
| blacklist_zone domain status Submitted Added Rejected | Removed
| bogusmx febo.com Listed Nov 11, 2005 22:35 EST Nov 11, | 2005
22:35 EST Never Never
| Return Code: 5
| Description: ns1.febo.com reports that febo.com has an MX
| (meow.febo.com) which ns1.febo.com says is a CNAME (to febo.com)
The issue they're complaining about is that febo.com has an MX record
that points to meow.febo.com. A host that is pointed to by an MX record
must have an A record, and is not allowed to be a CNAME. It turns out
that meow.febo.com is a CNAME for febo.com, and thus in violation with
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