Hi all,
We scan mail for a domain which uses Google Apps for Education and as
part of that they use Google Groups for communications to students.
Does anyone have any idea why when someone sends a message to group
'all_staff_and_stude...@domain.com' that Google insists on sending a
single message per-recipient from a host pool instead of sending a
single message to multiple groups of recipients (like 50-100 recipients
or so)?
Currently if someone sends a message with a 2Mb attachment we then see
~6Gb of traffic back. It's made worse by the fact that if a user is on
several groups and those groups are members of other groups, they get
the same message 3 times (Google appears to discard the duplicates, we
still receive them though). It's like a big amplification attack for
every message...
Anyone have any ideas on how to tackle this?
Kind regards,
Steve.
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