google smtp relay and passkeys?

[paul beard]

I have been using google as an SMTP relay with postfix for years with an app password but it seems that is now made obsolete? Is anyone using this successfully? I suspect the problem is that I use their passkey on my other devices and that switches off name/password authentication everywhere. Not ideal. If this is not resolvable — if I choose not to downgrade security on my other devices to recover this — are there public relay servers anywhere? I expect the answer is no but perhaps there is an authentication method that helps keep them from being abused. 

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Paul Beard / www.paulbeard.org/

[fatty.merc...@aceecat.org]

On Sat, Dec 27, 2025 at 09:14:23AM -0800, paul beard wrote:

> are there public relay servers anywhere? I expect the answer is no
> but perhaps there is an authentication method that helps keep them
> from being abused.

This may be helpful --- or not.

https://changelog.complete.org/archives/10768-announcing-the-nncpnet-email-network

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Ian