`/admin/email-logs/received` の件名の青いリンクをクリックしても何も起こりません

[ToddZ]

こちらで対応されたようです。

Received email can't be viewed in the Email logs

Thanks for reporting it! It seems we are unconditionally wrapping the subject in a link even if there’s nothing to link to… We’ve added a fix, which will be included the next time you update Discourse