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I've been trying to invite someone and from the very first attempt, their email keeps getting returned with the following message:

Deferred - 452 4.1.1 Too much mail from this address E2210

We've confirmed her email is valid. ?We're communicating about this over email. ?She's added our group email to her contacts.

Any insights?

On Wed, Aug 15, 2018 at 09:14 PM, Dellaina Holland wrote:

Deferred - 452 4.1.1 Too much mail from this address E2210

Some mail providers don't have adequate server capacity to handle the volume of email originating from services like groups.io. Instead of paying money to increase capacity, they throttle back the amount of email passing through based on IP address and other filtering techniques.

Looking at the GMF archive, this behavior has previously be reported from charter.net and rr.com. Could your subscriber using one of these services? If so, the problem with likely recur every now and then.

The flippant [yet most effective] answer to the problem is to get a better email provider.?See?this thread?for a recent discussion on this topic.

Hope this helps,
Bruce
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Similar message the other day. See the other thread.?
/g/GroupManagersForum/message/9859

Frances

Dellaina,

I've been trying to invite someone and from the very first attempt,
their email keeps getting returned with the following message:

Deferred - 452 4.1.1 Too much mail from this address E2210

As Bruce and Frances have said, this has cropped up before.

I have a slightly different take on it, I don't think that the service is necessarily running out of capacity, but rather that "this address" is referring to Groups.io as a sender. So a rate limit is being applied on the suspicion that Groups.io is sending spam.

If I'm right what has to happen is that the service needs to recognize Groups.io as a mail list service and remove the rate limiting (or apply a much higher one, appropriate to a mailing list service).

How to make that happen though is unknown. I know that Mark at Groups.io does his best to track down deliverability problems, contacting the receiving services as necessary. But maybe a word to the service's technical support from their own users would help.

Shal


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