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Re: rr.com's smtp-posting server



At Tue, 09 Feb 2010 03:58:00 -0800,
Taka Fukuda wrote:
> 
> 
>     Hi,
>     
>     This can be a little off topic, but I still believe that
>     many of you are suffering from the issue;  rr.com's
>     smtp-posting servers, for example, smtp-server.san.rr.com
>     keep sending back error message like:
>     
> Process SMTP deleted
> 220 Welcome Road Runner. WARNING: *** FOR AUTHORIZED USE ONLY! ***
> EHLO quadra.otacky.us
> 250-cdptpa-omtalb.mail.rr.com says EHLO to 72.130.185.xxx:58995
> 250-PIPELINING
> 250-ENHANCEDSTATUSCODES
> 250 8BITMIME
> MAIL FROM:<xxxxx@san.rr.com>  BODY=8BITMIME
> 501 5.5.2 MAIL FROM syntax error
> QUIT
> 221 cdptpa-omtalb.mail.rr.com closing connection
> 

From an outsider's perspective this looks like 

1. either the smtp server announces 8BITMIME (250 8BITMIME) but does
   not support it

or

1. got very picky on the specs: the esmtp extensions are specified in
   rfc1869 and for extensions the extend the MAIL FROM command the
   specs state (Section 6):

   ,----
   |    It is recognized that several of the extensions planned for SMTP will
   |    make use of additional parameters associated with the MAIL FROM and
   |    RCPT TO command. The syntax for these commands, again using the ABNF
   |    notation of [2] as well as underlying definitions from [1], is:
   | 
   |      esmtp-cmd        ::= inner-esmtp-cmd [SP esmtp-parameters] CR LF
   |                                            ^^
   `----

   The referenced spec (rfc821) define the <SP> as: "the
   space character (ASCII code 32)".

   I noticed that the dialog with the mta in questions issues /two/
   spaces after the MAIL FROM: -- maybe, just maybe this is what
   RoadRunner complains about?

   Merely smtp-server.san.rr.com refuses to talk to me so maybe
   someone could try to access the mta via telnet and issue the MAIL
   FROM command with just one space between the from address and the
   BODY=8BITMIME.

HTH
 -- David

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