[gdal-dev] GDAL mailing list email delays

[Daniel Baston]

I experience the same with GDAL and other OSGeo mailing lists. The
delay in receiving a message can be as much as two days, and messages
often arrive out-of-sequence. Other times things happen more or less
instantaneously.

Folks spent some time investigating the issue with the geos-devel list
but it was not resolved. Anecdotally, it seems to be mostly
experienced by Daniels using Gmail.

Dan

On Thu, May 29, 2025 at 1:29 PM Daniel Evans via gdal-dev
<gdal-dev at lists.osgeo.org> wrote:
>
> Hi all,
>
> Over the last couple of months, I've been receiving emails from the gdal-dev list with a significant delay, with emails from threads sometimes arriving out of order.
>
> For example, in the recent thread on Java bindings, the email headers show the following;
>
> Tom's initial email was delayed by 48 minutes, arriving at 1715 UTC:
> - Originally sent by the mailing list at 1627 UTC
> - After a few internal hops, received by lists.osgeo.org at 1636 UTC (with a header stating X-Greylist: delayed by 473 seconds)
> - Received my email provider's servers at 1715 UTC
>
> Even's reply was rather speedier, arriving at 1705 UTC, ten minutes before the email it was replying to:
> - Originally sent by the mailing list at 1705
> - Received by lists.osgeo.org at 1705
> - Received by my email provider at 1705
>
> Has anyone else been observing similar behaviour? Given that some people are replying before I see earlier emails, it's clearly not the same for all recipients.
>
> Cheers,
> Daniel
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