[dmarc-discuss] New to Mailing List

[Bank Security]

>If the situation is as stated by John, and Yahoo! is checking _only_ for
>SPF (type 99) then Yahoo! is not adhering to the standard.

They check for both.  If your server says it doesn't have an SPF
record, it'll ask for a TXT record. Apparently if your server doesn't
respond at all, Yahoo will ask again, which is reasonable since
there's no way to tell between a broken server that doesn't respond
and random packet loss.

R's,
John