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Harvey,

*From:*Nancy ... via Groups.Io <nancy...@...

As Duane said, this form is used when the sending service (me.com in this case) demands that email lists do this.

Occasionally, members report emails arriving out of order -- not
all the time, but occasionally. Also we've seen occasions where
emails took hours to arrive.

Some email services use Greylisting as an anti-spam measure. They really shouldn't apply that technique against an email list once they've seen messages from it before.


The problem with this technique is that it rejects the message the first time it is sent, and relies on Groups.io's server to re-try. That introduces an arbitrary delay in the receipt of that message.

You can also check the Email Delivery History tab of the affected member's page in the Members list to see if there are any clues there about message delivery to that member.

Shal


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