On 3/6/2012 8:57 AM, Nigel Metheringham wrote:
[Please do not take mailing list threads private - it means when someone
with the same question follows the thread it just stops partway. Also I
answer mailing list stuff (including that copying me directly) pretty
much on a whim, so only sending to me rather than the list risks the
thread stopping because I don't feel like answering this one...
Exim-users list copied back in...]
Jeffrey Starin wrote:
I know it's the correct file because when I attempt to change or input
the value and then restart, I receive errors. My ISP is telling me that
these values are "private" -- I've never heard of such a setup.
I suspect they are making things up there.
Anyway, my ultimate goal is to have all my messages destined, for say,
Yahoo, go in one connection rather than several connections, and I wish
to control that value. Is it the connection_max_messages I need to set
or the batch_max I need to set?
Many distinct messages, then you want to set connection_max_messages to
something higher. However because exim does not run as a centrally
controlled setup, you may still find that messages are independently
routed and sent down different SMTP sessions even to the same
destination. The way to mostly avoid this is to use queue_smtp_domains
to select the domains you wish to to have queued and then batch
delivered when a queue run happens. This does, of course, affect
latency of the system.
The batch_max and connection_max_messages are transport options, so are
added to a transport, giving you something like this
remote_smtp:
driver = smtp
connection_max_messages = 30
Remember the other end in an SMTP transaction is quite at liberty to
decide it wants no more than n messages in a single connection, or have
other limits on the numbers of recipients.
Nigel.
Ah ha! I see. Thank you for the update on that. Actually it's not
many distinct messages it's email campaigning so it's a single message
to many recipients. I don't know what yahoo expects and I've registered
with all the Feedback Loops, etc., they haven't been delaying my email
yet. But occasionally I do receive 421 messages. I just wish I could
reduce bandwidth by sending X number of messages in one connection. I'm
on a VPS and do not want to hog all the resources.
Thank you.
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