tails/ remains, but now we enforce the checks for the whole TPA wiki

service/forum.md

@@ -206,7 +206,7 @@ From time to time the Discourse dashboard will show a message like this:
 > mail server settings are correct. See the failed jobs in Sidekiq.
 
 In the Sidekiq logs, all the failed job error messages contain
-`Recipient address rejected: Domain not found `.
+`Recipient address rejected: Domain not found`.
 
 This is caused by some user's email domain going dark, but Discourse keeps
 trying to send them the daily email digest. See the [Mass-disable email