On Mon, Apr 25, 2016, Steve Freegard wrote: > 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 > '[email protected]' 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)?
Others have answered this. > 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... Instead of sending 2MB attachments, how about sending a link? This is easy with at least one webmail program, horde, which copies the attachment to the horde server. Bill -- INTERNET: [email protected] Bill Campbell; Celestial Software LLC URL: http://www.celestial.com/ PO Box 820; 6641 E. Mercer Way Voice: (206) 236-1676 Mercer Island, WA 98040-0820 Fax: (206) 232-9186 Skype: jwccsllc (206) 855-5792 Politicians should be limited to two terms, one in office and one in jail. -- Unknown _______________________________________________ mailop mailing list [email protected] https://chilli.nosignal.org/cgi-bin/mailman/listinfo/mailop
