@david Thanks for this fix! I just ran it and I can see it’s working. 
Is there a way to see which emails were not able to be delivered since October 1st?
I’ve tried this, but I only see 5 requests (the earliest was received on Nov 26):
/var/discourse/launcher enter mail-receiver
mailq
I also tried looking at the logs, but I only got the warning reported here:
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