Pkg exim4 users - Jul 2008 - Simple rewriting question

Hi,

[I don''t *think* this is Debian specific, but I''m too scared
of getting
flamed by the upstream Exim guys :)]

I''m configuring exim to relay outgoing mail using lavabit.com
(http://lavabit.com/settings.html) as a smarthost.  If I understand its
responses (seen both by playing with exim and by testing with swaks),
it requires *both* the envelope-from as well as the mail-header-from to
be set to ''username at lavabit.com'', or else it rejects the
mail (after
receiving the data) with:

** 550 This user account is not authorized to send messages with the
address someuser at somedomain.tld. Please adjust your e-mail client
settings and try again.

Using this rewrite rule
(in /etc/exim4/conf.d/rewrite/00-exim4-config_header) seems to work:

*	username at lavabit.com	Ff

Is this the ''right'' way to do this?  Is this a typical
restriction for
''consumer grade'' smarthosts?  I generally use Gmail''s
smarthost, which
seems to accept mail ''as is'', although I believe that it then
rewrites
the mail-header-from.

Celejar
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Celejar <celejar at gmail.com> wrote:
[...]
> I''m configuring exim to relay outgoing mail using lavabit.com
> (http://lavabit.com/settings.html) as a smarthost.  If I understand its
> responses (seen both by playing with exim and by testing with swaks),
> it requires *both* the envelope-from as well as the mail-header-from to
> be set to ''username at lavabit.com'', or else it rejects
the mail (after
> receiving the data) with:
> ** 550 This user account is not authorized to send messages with the
> address someuser at somedomain.tld. Please adjust your e-mail client
> settings and try again.
> Using this rewrite rule
> (in /etc/exim4/conf.d/rewrite/00-exim4-config_header) seems to work:
> *       username at lavabit.com    Ff
> Is this the ''right'' way to do this?
I think so, yes.
> Is this a typical restriction for ''consumer grade''
smarthosts?  I
> generally use Gmail''s smarthost, which seems to accept mail
''as is'',
> although I believe that it then rewrites the mail-header-from.
I think restrictions on the Header-From, possibly combined with
automatic replacement of Envelope-From is common.
cu andreas
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