I was trying to download website backups from /admin/backups and I cannot receive download emails. After checking production.log I found following output Started PUT "/admin/backups/xxx.tar.gz" for 203.18.50.6 at 2023-05-08 05:34:50 +0000 Processing by Admin::BackupsController#email as */* Parameters: {"id"=>"xxx.tar.gz"} start Rendered text template (Duration: 0.0ms | Allocations: 1) Completed 200 OK in 658ms (Views: 3.7ms | ActiveRecord: 0.0ms | Allocations: 11718) Rendered layouts/email_template.html.erb (Duration: 2.6ms | Allocations: 36) Job exception: Net::SMTPServerBusy fail There’s also similar errors related to SMTP, such as below start Rendered user_notifications/digest.html.erb within layouts/email_template (Duration: 26.5ms | Allocations: 3067) Rendered layout layouts/email_template.html.erb (Duration: 35.6ms | Allocations: 3335) Rendered user_notifications/digest.text.erb (Duration: 19.6ms | Allocations: 2594) Job exception: Net::SMTPServerBusy Job exception: unexpected return fail The site was migrated from an old other site, and there’re many users email formatted as 909471255bcde5900c628c6@email.invalid Can someone give me a clue what’s the cause of the issue and how can I resolve that?

[image] Hyan: There’s also similar errors related to SMTP, such as below Something is wrong with your smtp server. You’ll need to fix it. [image] Hyan: The site was migrated from an old other site, and there’re many users email formatted as 909471255bcde5900c628c6@email.invalid Those users had invalid (perhaps empty) email addresses, so the import script created a bogus one. There’s not much you can do to fix that.

Net::SMTPServerBusy exception

Product Support Self-hosting

Hyan (Hyan) May 9, 2023, 3:01am 3

Turns out it’s related to my SMTP server. After verifying it with ./discourse-doctor and resolved the SMTP errors. I can send emails now and those queued emails are sent as well.

Thanks your always help @pfaffman

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Net::SMTPServerBusy exception

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