On 16.02.2015 15:31, Sujit Acharyya-choudhury wrote:
Hi Marius,
Thanks for the info.
Does it actually mean that if the bulk message is say 500 to various
yahoo, then it would send 9 messages/connection and max connection being
5 - so in effect 45 messages? After that another Message_ID will be
generated for the delivery?
I doubt that a new message id will be generated. As far as I know each
incoming message gets an unique ID. So you're getting the same ID on all
mailing list.
But those lines make sure that each sending batch doesn't pass to yahoo
than 5 messages, each with at most 9 different rcpt-to
Marius
Sujit
-----Original Message-----
From: Marius Stan [mailto:[email protected]]
Sent: 16 February 2015 13:20
To: Sujit Acharyya-choudhury; [email protected]
Subject: Re: [exim] How to limit too many recipients from mailing list
On 16.02.2015 15:12, Sujit Acharyya-choudhury wrote:
I have something like this:
domainlist throttled_domains = yahoo.com : yahoo.co.uk : yahoo.ca :
yahoo.es yahoo.it : yahoo.ro
# This router limits the messages per outbound SMTP conenction:
# Place it BEFORE other regular dnslookup routers
throttled_out:
driver = dnslookup
domains = +throttled_domains
transport = dkim_smtp_throttled
ignore_target_hosts = 0.0.0.0 : 127.0.0.0/8
no_more
# Place something like this in transports:
dkim_smtp_throttled:
driver = smtp
max_rcpt =9
connection_max_messages = 5
[ rest of options]
We want to ensure that when sending a message to a mailing list, we
don't send messages to too many recipients as Yahoo, AOL usually will
block our gateway as a result. The best way is to split the message
so
that the number of recipient are within a limit of say 100 max. What
is
the best way of achieving this. Usually, people send it to a list and
there is no way of knowing how many recipients there are in a
particular
list, as some list will contain 1000 users and some may be 50.
We have set max_rcpt=30, but I have a feeling that, the message_id
remains the same for all the deliveries and as such Yahoo/AOL will go
by
message_id and max_rcpt will have no effect.
Regards
Sujit Choudhury | IT Services
Birkbeck, University of London
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