nanog mailing list archives
Re: DNS question, null MX records *summary of on list and off list replies*
From: Phil Vandry <vandry () TZoNE ORG>
Date: Tue, 15 Dec 2009 22:14:10 -0500
On Tue, 15 Dec 2009 11:51:29 -0600, Eric J Esslinger wrote:
B. Set spf -all, for those who bother to check that to stop inbound mail from your domain.
You might as well also add a DKIM ADSP policy with "dkim=discardable". Similar to your SPF policy, it announces that no unsigned mail (or no mail at all in your case) should come from this domain. But DKIM does not suffer from the problems SPF causes with email forwarding (see recent NANOG thread on that topic). -Phil
Current thread:
- Re: DNS question, null MX records, (continued)
- Re: DNS question, null MX records Paul Vixie (Dec 16)
- Re: DNS question, null MX records Douglas Otis (Dec 16)
- Re: DNS question, null MX records Paul Vixie (Dec 16)
- RE: DNS question, null MX records Jay Mitchell (Dec 18)
- Re: DNS question, null MX records Tony Finch (Dec 17)
- Re: DNS question, null MX records Douglas Otis (Dec 17)
- Re: DNS question, null MX records James Hess (Dec 17)
- Re: DNS question, null MX records Mark Andrews (Dec 17)
- Re: DNS question, null MX records Tony Finch (Dec 18)
- Re: DNS question, null MX records *summary of on list and off list replies* Phil Vandry (Dec 15)