>>>>> "SW" == Simon White <[EMAIL PROTECTED]> writes:
SW> You have a point. Mailman is injecting to the MTA so if it
SW> does connect/disconnect etc then this will affect even
SW> Postfix. So, there does need to be a way to have Mailman open
SW> a single connection to the server for each domain, and then do
SW> RCPT TO: several times.
SW> I *thought* that was what it did anyway... can anyone else
SW> prove me wrong / right?
The chunking algorithm for sending messages to the mta is defined by
variables such as SMTP_MAX_SESSIONS_PER_CONNECTION and
SMTP_MAX_RCPTS.
The latter specifies the maximum size of the RCPT TO chunks in each
handoff to the mta. Set it to a negative number to not chunk at all.
When chunking, Mailman first sorts by these tlds: .com, .net, .org,
.edu, .us, .ca. Everything else goes into a separate bucket. Yeah,
this is pretty North America-centric :/. Note that Mailman does not
chunk based on MX or on 2nd level domain names.
SMTP_MAX_SESSIONS_PER_CONNECTION determines how many chunks it sends
down the same socket connection to the mta. Again, a negative number
means blast all the chunks down the same connection.
-Barry
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