What is the difference between “reply by email address” and “alternative reply by email addresses” in the Admin → Email settings page? Also, if I was using a reply_key earlier in the reply-to email, but now I’ve switched a reply-to email without a reply_key, do I still need to enter the older reply…

Discourse will generate mail using the reply by email address setting, but will accept mail that matches that or anything in the alternative reply by email addresses setting. (I’m not sure of the answer to the second question)

[image] Michael Brown: will accept mail that matches that or anything in the alternative reply by email addresses setting Thanks, for clarification; when you say accept mail, do you mean that it process an email response with the “to” address containing any of the emails from the alternative …

[image] RBoy: it processes an email response with the “to” address containing any of the emails from the alternative reply by email addresses setting? Correct :+1: [image] RBoy: does one need to “duplicate” No need to duplicate them.

Isn’t the reply key necessary for the posts to be connected to the right topic?

Good question - I’m assuming it is optional which is why there another option on the Admin Email settings page - Find related post with key I thought it uses a combination of the topic title and email address to match it up when it’s not using the key.

So the short answer is yes, it does work. You don’t need the reply_key to get it to accept email responses to messages. However I did find a bug as without the reply_key it doesn’t use the email specified in the reply by email address. I’ve reported that separately here. [image] …

Difference between "reply by email address" and "alternative reply by email addresses"

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supermathie (Michael Brown) June 8, 2022, 7:08pm 4

Correct

No need to duplicate them.

Topic		Replies	Views
Reply by email address broken Bug	7	1196	November 18, 2022
Reply key / email address check not working? (replies by email) Support	16	1975	November 14, 2019
Alternative reply by email addresses doesn't allow addresses without reply_key Bug	2	1165	March 2, 2018
Configuring reply_by_email breaks regular email sending Support	6	969	June 16, 2017
Reply own mail creates new topic Support	8	1353	November 22, 2017

Difference between "reply by email address" and "alternative reply by email addresses"

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