Hey Carl,

Not quite. In SendGrid-speak the term bounce is reserved for invalid
address responses. I know it isn't normal. I often forget to change my
register when I write out in the real world. The example you provided is
what we'd call a Block. So, when I said bounce percentages dropped I meant
strictly invalid address responses, which is usually (but not always)
related to a positive change in sending behavior or in the case of
multi-tenant users, kicking bad actors off their system.

On Wed, Aug 4, 2021 at 6:02 PM Carl Byington via mailop <mailop@mailop.org>
wrote:

> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA512
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> On Wed, 2021-08-04 at 16:40 -0700, Luke via mailop wrote:
> > Bounces and spam report percentages dropped.
>
> I am probably not the only one that has SA blocking all mail from some
> of those senders.
>
> header SENDGRID4 X-Entity-ID =~ /7mxhBNMkQ9yfwz0A5\+NG7Q==/
>
> So are you tracking rejects where the recipient mail server replies with
> something like
>
> 550 5.7.1 Mail rejected - spam assassin score 19
>
> as a response to the smtp DATA command?
>
>
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>
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