[Pkg-exim4-users] Simple rewriting question

[Andreas Metzler]

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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