Is it possible to choose what identify to use based on the recipientemail address?

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One thing I like with Mutt/NeoMutt is that you can choose what identity to use based on what e-mail adress the message was sent to, something that’s handy for email messages from mailing lists.

I haven’t seen anything about it in the settings, so I assume it’s not possible? If not, would it be something you could consider adding?

1 Like
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If the recipient address matches that of an identity configured in K-9 Mail, the app will use that identity for replies. There’s no generic mapping for recipient address to sending identity.

What has been proposed is to tie an identity to a folder: https://github.com/k9mail/k-9/issues/2155
If you have per-mailing list folders that would probably also work for your use case.

But please feel free to create a feature request on GitHub with your suggestion.

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I guess I have a similar need: I have one mail server into which all (gmail, .edu, etc) receive mail into, and then sort into folders based on use, not on email address. I.e. my INBOX receives emails from @gmail.com, @xxx.edu, etc. Then I would like to use a dedicated outgoing server based on the email address I am replying to. Locally on laptop I use msmtp which has configuration for default and then a number of specific email addresses/servers.
In K9 it seems only 1 outgoing server can be configured, so I am stuck with e.g. gmail rejecting emails which use my @gmail.com email address while sending through the default SMTP server associated with that mailbox receiving all those emails.

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You can configure Gmail to send email under other identities after verifying that you own the other address. My Alma mater uses Gmail like that.

However, Gmail will populate the on-behalf headers. Thus, privacy issues may arise as “john.doe@university.edu” will be used in the from header, but most MUAs will use the on-behalf header and show “kittylover1JDoe@gmail.com on behalf of john.doe@university.com”, thus exposing your other email address.

There is no way to disable this as Google ads the header for spam protection reasons.

(The same happens if you have Gmail fetch mail from other accounts for you and aggregate all accounts in Gmail. When you answer to an email, it will be sent through Google’s SMTP, thus adding the on-behalf header.)

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Thanks @tchara . Wouldn’t work for me really though. Even just that there is too many addresses to configure gmail for :wink: And my “emails aggregator” is not gmail.