I can’t find anywhere in Discourse admin panel where I can find full details of bounced emails – to read the content and find out the bouncing reason.
I don’t seem to have those saved in my email account (automatically deleted by Discourse?)
Bounces for mail attempting to be delivered to Discourse, or bounces for mail sent by Discourse? In either event, they’re under Admin → Emails, just different tabs (“Rejected” vs “Bounced”).
Yep, they’re listed there, but I’m interested in full email details to analyse the bounce reasons.
Look in siteurl/logs
There is a warning message for each bounce (incoming and outgoing), starting with “Email can not be processed:..” you can see the details in “info”.
siteurl/admin/email/bounced lists destination and type of bounced,
siteurl/admin/email/rejected lists source, subject and reason.
So click on the link under the “error” column. It’ll display a pop up with everything you could ever possibly want to know about the bounce.
Found out that you also have to enable log mail processing failures in settings.
You might also want to know that discourse is reporting greylisted emails as bounced:
나처럼 이 부분에서 혼란을 겪고 계신 분이 혹시 더 계신지 모르겠어서, “error” 열은 실제로는 “Email Type”이라는 이름으로 표시되어 있습니다. 그래서 저는 테이블 안의 다른 링크나 테이블 항목 자체를 클릭해 보았지만, 아무것도 제가 원하는 결과를 주지 않았고, “Email Type” 열의 “digest”나 “mailing_list”를 클릭해서 오류 정보를 확인해야 한다는 생각조차 하지 못했습니다.