RE: [Exim] 501 malformed address

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Autor: Exim Users Mailing List
Data:  
A: Troy Settle
CC: Exim Users Mailing List
Assumpte: RE: [Exim] 501 malformed address
[ On Tuesday, June 17, 2003 at 20:00:11 (-0400), Troy Settle wrote: ]
> Subject: RE: [Exim] 501 malformed address
>
> Does this look like something that would be generated by Exim? If so,
> would it be in the logs? (I can't find it if there is a log entry):
>
> 501 <5102715492@???> RET=HDRS ENVID=16792718l:
> malformed address: RET=HDRS ENVID=16792718l may not
> follow <5102715492@???>


Yes, from examination of the source it seems Exim-4.20 could have
uttered that response:

    $ fgrep 'malformed address: ' *.c
    parse.c:      string_sprintf("malformed address: %.32s may not follow %.*s",
    parse.c:    *errorptr = string_sprintf("malformed address: %.32s may not follow %.*s",


> Hmm... Seems that Exim isn't following RFC1891 or maybe I don't have
> something configured right.


As far as I can tell from the source Exim-4.20 does not implement any of
RFC 1891 and by testing we can also see that it does not claim to do so
in its EHLO response:

    $ telnet mail.exim.org 25
    Trying 195.92.249.251...
    Connected to mail.exim.org.
    Escape character is '^]'.
    220 exim-colo-01.whoc.theplanet.co.uk ESMTP Exim 4.20 Wed, 18 Jun 2003 01:29:37 +0100
    EHLO proven.weird.com
    250-exim-colo-01.whoc.theplanet.co.uk Hello [xupE6xfWuZedc7xjdkxdURYZ5bkrwBEz855fmSRu8LG3FdwTeYJHgn1A88Csf0yeRswmEQ3bUVvqlhpdtrMBxA==] at proven.weird.com [204.92.254.15]
    250-SIZE 52428800
    250-8BITMIME
    250-PIPELINING
    250 HELP
    quit
    221 exim-colo-01.whoc.theplanet.co.uk closing connection
    Connection closed by foreign host.


What mailer connected to exim and triggered that response from it?

I would suggest whatever mailer it was is the one that doesn't properly
implement RFC 1891! It should not have given RET and ENVID option
parameters with its MAIL command if it did not see a proper "DSN"
keyword in the EHLO response.

--
                                Greg A. Woods


+1 416 218-0098;            <g.a.woods@???>;           <woods@???>
Planix, Inc. <woods@???>; VE3TCP; Secrets of the Weird <woods@???>