On 01/06/13 05:10, Jasen Betts wrote:
On 2013-05-30, Sebastian Arcus <[email protected]> wrote:
I use the following client authenticator to connect my Exim in smart
relay to my provider's SMTP server and send email:
fixed_plain_client:
driver = plaintext
public_name = PLAIN
client_send = ^$sender_address^${lookup{$sender_address}\
lsearch{/etc/exim/exim-client.passwd}{$value}{fail}}
It is all working fine, but there are two things I would need some
clarification about:
1. Does Exim authenticate as a client and send one message at a time by
default (and authenticate again for next message to be sent) - or does
it try to send several messages on the same authentication session?
By default the smtp transport will send as many emails as possible,
you can set connection_max_messages to 1 to limit this to a single
email per connection, or you can create several tranports one for each
user.
2. If it tries to send several messages in one go after authenticating -
what does $sender_address refer to? Is it the sender address of the
first message which it tries to send?
It's empty unless they all have the same sender. (same deal with all
other variables in the smtp transport)
Thank you for the info Jasen. I've been using $sender_address in client
authenticator for smtp smart relay for 3-4 years now. I don't use
$connection_max_messages (yet). These are sites with up to 10
workstations connecting to the internal smtp server (which in turn
relays to the provider's smtp server). I haven't had any problems with
this so far - as far as I know. Would this mean that I was just lucky,
and exim happened to be sending just one message at a time out of sheer
luck?
Sebastian
--
Linux vehicle CCTV - www.open-t.co.uk/iroko
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