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My group just?recently?experienced a large number of members who are bouncing;?all on the same date October?10th.
The total number of bouncing members was 28.

It is most interesting that of the 28, ATT was the email service provider for 4, and 21 was to a Yahoo address.
I have noticed that ATT is still handling email sent to Yahoo addresses.

Another Interesting bit?of information; Yahoo groups shows no bouncing to the same goups.io members.

Is this a competitive?restriction by Yahoo and ATT against Groups.io?

Don Clark

It might be a good Idea for Mark to contact ATT and Yahoo to see if he can have them correct this issue.?

On Sat, Oct 13, 2018 at 02:15 PM, Don Clark wrote:

Is this a competitive?restriction by Yahoo and ATT against Groups.io?

I seriously doubt it.? They're probably not even aware that Groups.io exists.? It's just something that seems to happen regularly with those services.? I'd say about 50% of the time, things start working again before the members go to Bounced (red) status, possibly a bit more.

Duane
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Don,

My group just recently experienced a large number of members who are
bouncing; /all on the same date October 10th/.

What Duane said.

Have you looked at the "Recent Bounces" on the Email Delivery History tab of those members' pages in the Members list? The bounce reason stated by their email service may be informative.

Another Interesting bit of information; Yahoo groups shows no bouncing
to the same goups.io members.

Even if those members are being sent messages from Y!Groups, their bounce tracking has been unreliable at best over the last couple of years. There are both kinds of errors: good addresses that haven't been removed from bouncing status and bad addresses that haven't been added to it.

There's also a possibility that Y!Group messages were "whitelisted" against whatever caused the the bouncing of the Groups.io messages. That's where the exact response code and text might be informative.

It might be a good Idea for Mark to contact ATT and Yahoo to see if he
can have them correct this issue.

I believe he does track deliverability issues with the various receiving services, so if that was a widespread event he's probably aware of it.

For What It's Worth I don't any members from either service listed as bouncing recently in GMF's Member Activity log, but that's a relatively small sample (10 att.net and 124 yahoo.com members).

Shal


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