Re: [Asrg] [META] Proposed additional SMTP commands *AFTER* RCPT: please

["Jon Kyme" <jrk@merseymail.com>]

>   I've emailed comments to the author of one proposal, and it occurs to
> me that this may apply to other proposals that I haven't read, so I'll
> post it here.
> 
> 
>   Additional SMTP commands might be possible for an ISP to implement
> on a client-by-client basis, where individual subscribers decide the
> criteria.  For this to work, the MTA must know who the intended
> recipients are.  Therefore, it would have to be done after the RCPT:
> stage, where individual recipients are listed.  This is not as
> theoretical as it may sound.  Even though I'm in Toronto, I use clss.net
> (Logansport, Indiana, USA) for my inbox.  They have a modified Qmail
> that parses a blocking config file in the end-user's home directory
> after the RCPT: stage.  I can accept/reject based on DNSbls, IP address
> range, domain, rDNS, etc.  So it can be done.
> 
>   My goal in making this post to ask authors to allow for, and not
> preclude, the possibility of their extensions being implemented on a
> user-by-user basis.
> 

This kind of approach seems to rely on there being a maximimum of 1 RCPT
per transaction. I'm not saying that's a bad thing (this has been discussed
on the list - and some say it is).




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