"Reply-To" field for outgoing emails.
"Reply-To" feild is missing in ProtonMail, where we can set an reply-to email address while sending emails. This enables the recipient to reply to that "reply-to" address instead of the one from which the email was sent.

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sab commented
Yes, why isn't it possible to add a reply-to field?
I even wish to be able to set it as a default under user preferences. -
Bernd commented
Will this come? I have an "eternal mail address" with a forwarder service, and I want people respond to that mail when I send mails from Proton. Anything in the pipeline?
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Steve commented
Given how long this issue has remained open, there must be some real or imagined reason that Proton won't implement it. Is there perhaps a security issue? Proton, please at least comment.
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richard clark commented
Need this to include send from aliases
Example test.com alias to proton account
Send from j@test.com with a reply to of john@test.com -
erion commented
Hello, it's a simple feature : every mail provider has it.
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B MacAlister commented
II have two email "presences" that I need to maintain on outgoing emails, as an editor and as a licensed radio amateur. I need to be able to invoke a "reply-to" link for selected outgoing email messages. It works fine in gmail. I'd like to switch to proton mail for everything but I cannot without a selective "reply-to" choice.
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Anonymous commented
If you send mail via Proton Mail Bridge with a Reply-To field, it gets stripped off. This suggests this is a deliberate lock-in policy. Not good.
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Raoul commented
We need it please !
Especially when you can't use imap with a Proton account -
Charles commented
Just signed up for a Proton mail account and very disappointed not to have this feature.
This has been reported so often that Im surprised that Proton refuses to offer it.
I will continue to search for another alternative to Gmail that does. Good thing I did not already choose the paid Proton service. -
marcel kurz commented
The fact that this is not implemented is shameful.
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Ruslan commented
Special handling for Reply-To is not critical, but being able to add standard email headers definitely is. There's no good reason not to have an escape hatch.
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Janne commented
Here too.
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Duane Mattos commented
Ping! Still mission critical for me.
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nemo outis commented
Absolutely essential!
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blend commented
How is this still not a thing?
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Revov commented
Must have when your main domain is hosted elsewhere (and has to remain elsewhere). Mail forwarding and reply-to are jointly the solution to my situation.
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Petri Pellinen commented
This is a must-have for me and is supported on practically all other platforms. Have been waiting for a comment from Proton for a year now. I'm going to move away from paid version to some other platform at the end of this billing cycle.
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Jason commented
The reply-to field allows the sender to specify a preferred email address for reply mail. This feature is present in most modern email services and is a standard feature of email.
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K Rasmussen commented
Others suggest the posibility to change the from field to an +alias.
https://protonmail.uservoice.com/forums/945460-general-ideas/suggestions/45639766-alias-creation-when-composing-an-email
Without any of these suggestions I do not see the purpose with +alias.
+alias can also help feighting Spam as you can change your public mail alias without changing your mail account -
Darrin Rich commented
I need a reply to to work with my helpdesk software. Without it I'll have to find email alternatives