I have been asked to investigate a problem with mail delivery to a
number of students in our Google Apps for Education domain. A user sent
a single message to 18 students. The log entries look like the following:
2010-12-14 11:06:04 1PSSho-0003J4-D9 <= sender@??? ...
2010-12-14 11:06:05 1PSSho-0003J4-D9 => recipient1@???
R=google_router T=google_smtp H=aspmx.l.google.com [209.85.229.27]
2010-12-14 11:06:05 1PSSho-0003J4-D9 -> recipient2@???
R=google_router T=google_smtp H=aspmx.l.google.com [209.85.229.27]
: :
2010-12-14 11:06:05 1PSSho-0003J4-D9 -> recipient6@???
R=google_router T=google_smtp H=aspmx.l.google.com [209.85.229.27]
2010-12-14 11:06:05 1PSSho-0003J4-D9 => recipient7@???
R=google_router T=google_smtp H=aspmx.l.google.com [209.85.229.27]
2010-12-14 11:06:05 1PSSho-0003J4-D9 -> recipient8@???
R=google_router T=google_smtp H=aspmx.l.google.com [209.85.229.27]
... and so on.
There is a single <= entry, but four => entries and 14 -> entries.
What I don't understand is how a single message with 18 recipients can
end up being delivered to the same destination host address in four
separate connections. (I suppose one can't be sure which of the four
connections the later -> entries are associated with.) Can anyone
explain this for me.
I am running version 4.70.
Thank you in anticipation.
Richard
--
Richard Gilbert
Corporate Information and Computing Services
University of Sheffield, Sheffield, S10 2TN, UK
Phone: +44 114 222 3028 Fax: +44 114 222 1188
