There's a lot of variation in what 4xx and 5xx mean in practice. This means
there's room for some senders to spend time investigating and understanding
what each receiving domain's 4xx and 5xx (and subcategories thereof)
actually mean for address delivery over time, and for designing rules and
poli
Luke via mailop skrev den 2023-02-26 04:15:
I can assure you sendgrid retries 4xx. We also don't retry 4xx. We
also retry 5xx. We also don't retry 5xx. How is it 2023 and people
still think 4xx means retry and 5xx means don't retry?
what books do you read ?
maybe rfc 7505 is soon or later for
Hi,
If anybody from Convio is on this list, please ping me. This related to some
issues you're having with sending.
Thanks!
-Ryan, Proofpoint___
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I can assure you sendgrid retries 4xx. We also don't retry 4xx. We also
retry 5xx. We also don't retry 5xx. How is it 2023 and people still think
4xx means retry and 5xx means don't retry?
Luke
On Sat, Feb 25, 2023, 9:21 AM Michael Orlitzky via mailop
wrote:
> On Fri, 2023-02-24 at 15:57 -0500,
It appears that Michael Orlitzky via mailop said:
>On Fri, 2023-02-24 at 15:57 -0500, Christine Borgia via mailop wrote:
>> It is transient, but they are blocks and are not retried. Weird, right?
>>
>
>SendGrid doesn't retry on 4xx and haven't for many years.
I think we have identified the probl
Dnia 24.02.2023 o godz. 09:51:02 Mark Milhollan via mailop pisze:
> Did you read the link? Does your ESP have a postmaster account? If
> they don't send enough messages ("a large volume") to Gmail they
> won't provide any information about reputation, except that that
> itself indicates that you
On Fri, 2023-02-24 at 15:57 -0500, Christine Borgia via mailop wrote:
> It is transient, but they are blocks and are not retried. Weird, right?
>
SendGrid doesn't retry on 4xx and haven't for many years.
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On 25/02/2023 12:32, Benny Pedersen via mailop wrote:
Simon Greenwood via mailop skrev den 2023-02-24 22:09:
This (which I didn't know) adds a whole different aspect to the issue
- much has been said about how email is now centralised and is almost
impractical to run as a small operator level,
Matt Palmer via mailop skrev den 2023-02-25 01:01:
[Fixed TOFU]
On Fri, Feb 24, 2023 at 03:57:00PM -0500, Christine Borgia via mailop
wrote:
On Fri, Feb 24, 2023 at 1:09 PM Benny Pedersen via mailop
wrote:
> Christine Borgia via mailop skrev den 2023-02-24 17:17:
>
> >>> 421 4.7.0 [149.72.9
Simon Greenwood via mailop skrev den 2023-02-24 22:09:
This (which I didn't know) adds a whole different aspect to the issue
- much has been said about how email is now centralised and is almost
impractical to run as a small operator level, but if a company like
Shopify and indeed Sendgrid can't
Christine Borgia via mailop skrev den 2023-02-24 21:57:
It is transient, but they are blocks and are not retried. Weird,
right?
proff from logs is ?
others say this ip is not google but sendgrid
simple "mailq" will show it
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