ietf-smtp
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Re: Submission and SMTP SRV records

2004-03-16 15:22:27


[top-post for context]

See http://www.ietf.org/internet-drafts/draft-hall-email-srv-00.txt

I have gotten some recent feedback and am going to be updating it soon.
I'd like to hear any feedback you might have on it.


On 3/16/2004 3:54 PM, Pete Resnick wrote:

Is anyone implementing SRV records for either SMTP or for Submission 
(i.e., SMTP SUBMIT extension)? Some talk about implementation raised 
some questions:

- SRV is pretty redundant with MX for SMTP, though you could 
conceivably use SRV to specify an alternate port number. Has anyone 
attempted this?

- SRV for submission is an interesting way for an client to figure 
out which server/port it should contact, but what exactly would the 
query look like? Should you take the right hand side of your e-mail 
address and query, taking me as an example, 
_submission._tcp.qualcomm.com? Should you be looking up 
_submission._tcp.4.3.2.1.in-addr.arpa (assuming your own IP address 
is 1.2.3.4)? And again, has anyone tried any of this?

It would be nice if we had a convention for such a lookup.

pr

-- 
Eric A. Hall                                        http://www.ehsco.com/
Internet Core Protocols          http://www.oreilly.com/catalog/coreprot/