Nigel Metheringham wrote:
>> I've found similar config for a single user relay. But how do I relay
>> through gmail with multiple gmail accounts
>
> This is going to be difficult because gmail requires authentication,
> and will rewrite the sender if the authenticated user does not have
> the sender as one of their registered email addresses.
>
> So to do this you need a full set of usernames *AND* passwords for
> your users to authenticate to gmail. Thats really not good for many
> reasons.
Hmmm ... You know, you could do some *evil* stuff here. Say I had an
account on their server:
Username: mike
Password: foobar
And say I wanted to relay through the gmail account:
Username: [EMAIL PROTECTED]
Password: wibble
If I authenticated against the Exim box with something like:
Username: [EMAIL PROTECTED]
Password: foobar+wibble
Then in the server part of the authenticator I could strip out "mike"
and "foobar" from auth1 and auth2, to do the authentication, and then
store "[EMAIL PROTECTED]" and "wibble" using server_set_id. Then when it
came round to doing the client authentication it could use those values
that were stored during the initial client->exim delivery.
Of course, which character you use to separate the two usernames and two
passwords would depend on the environment. "+" may not be suitable.
Example (Completely untested):
PLAIN:
driver = plaintext
server_set_id = username=${sg{$auth2}{\N^.+?\+(.+)\N}{\$1}}\n\
password=${sg{$auth3}{\N^.+?\+(.+)\N}{\$1}}
server_prompts = :
server_condition = ${if pam{\
${sg{$auth2}{\N^(.+?)\+.+\N}{\$1}}\
:\
${sg{$auth3}{\N^(.+?)\+.+\N}{\$1}}\
}{1}{0}}
client_send = ^${extract{username}{$authenticated_id}}\
^${extract{password}{$authenticated_id}}
Mike
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