I think clicking on an “Email Type” field, e.g. user_watching_first_post is meant to display details of the bounce message received from the intended recipient. But on my self-hosted site I get the error message stated above. Is there anything I can do to fix this? Thanks.

[image] Jonathan5: I think clicking on an “Email Type” field, e.g. user_watching_first_post is meant to display details of the bounce message received from the intended recipient. That is correct. I’ve just checked this on my hosted Discourse site and it’s working without any problems. If your site is on the latest version of Discourse, I’m wondering is the issue is related to how your mail server handles forwarding the bounce message.

Thanks. For outgoing mail I’m using Mailgun. I think I used Discourse’s recommended settings. For incoming mail I’m using this Configure direct-delivery incoming email for self-hosted sites with Mail-Receiver But I’ve never updated it since installation - might that be the problem? As it’s ./launcher rebuild app for Discourse, is it ./launcher rebuild mail-receiver?

Yes, that’s how to upgrade it. It’s been a while since the last update, I think, but a good first stop) step would be to upgrade it and discourse.

I have upgraded both and still get the same error, including (I think) for emails received since the upgrade. Any further ideas?

[image] simon: I’m wondering is the issue is related to how your mail server handles forwarding the bounce message. Yes likely Discourse isn’t getting it from Mailgun. I don’t know how the webhooks work but suspect it just tells Discourse there has been a temporary/permanent failure without sending the bounce message.

Is there any way to make this Discourse feature work with Mailgun? It should be possible to show at least the error code and message: Both SMTP error code and SMTP error message are preserved “code”: 550, “address”: “'baz@example.com”, “error”: “Message was not accepted – invalid mailbox. Local mailbox 'baz@example.com is unavailable: user not found” https://documentation.mailgun.com/en/latest/api-bounces.html#examples If not then at least we need a sensible error message to explain why the link doesn’t work :slight_smile:

Has any work been done on this. I’d be very grateful if there had :slight_smile: I use Digital Ocean and Mailgun (ie the main recommendations) so imagine it’s not just me with the problem.

After my own testing it seems in many cases, bounces are not received by the mail receiver at all. (I only found a connection attempt for one, which was promptly lost). I’m not seeing the Return-Path header being set at all (is it supposed to be?) which makes me think that they’re not even being sent back most of the time.

Still a problem here as well. Despite my earlier statement, it now appears that none of these links work, going back to site startup. Initially it only seemed to affect bounces from before we started handling bounces properly (Configure VERP to handle bouncing e-mails).

"Discourse::NotFound" error when click "Email Type" field on admin/email/bounced

Product Support Self-hosting

jrivettcsa (Jeff Rivett) February 16, 2021, 4:00am 6

Same problem here. Self-hosted, up to date. Bounces being handled the recommended way. Links from before we changed to proper bounce handling work fine.

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"Discourse::NotFound" error when click "Email Type" field on admin/email/bounced

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