Hi Judy,
I wrote:
Just before clicking the "Go" button, send a Special Notice to the
Yahoo Group letting them know that the time has come, ...
Also, in my most recent go-around I exported the Y!Group's Membership List in TSV format (the group had fewer than 1000 members) and pulled that into Excel. Three I sorted by email Delivery, and used BCC in from my Gmail account to send a copy of that "time has come" message to all the members set to No Email.
That might have been over the top, and a few of those messages bounced, but it wasn't that much effort and (so far) none of them have objected to receiving the off list message from me.
After the transfer completes I'm considering taking the Y!Group's Bouncing list and sending them an Invitation. They won't have heard anything about the move, and they won't have been copied by the transfer agent. And indeed likely most of them are truly dead addresses that will bounce when I send the invite.
But experience has shown that Y!Groups does sometimes have working addresses on the Bouncing list. Just as sometimes a dead address is not listed as bouncing - and those will immediately go bouncing in your Groups.io group.
Shal
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