Setting "reply-to" in Apple Mail

Discussion in 'Mac Apps and Mac App Store' started by daihard, Dec 15, 2008.

  1. macrumors 6502a


    Feb 19, 2008
    Seattle, WA

    I am wondering how, if possible, to set the default "reply-to" address on Apple Mail.

    I know I can manually add it to each message I compose, but that's rather cumbersome. I'd like to be able to configure Mail so every message I send out will automatically use the same "reply-to" mail address. Is it possible?

    Thanks in advance for any help.

  2. macrumors member

    Nov 30, 2008
    when composing a message click the box with three lines next to the from field, then check reply-to, then customize
  3. thread starter macrumors 6502a


    Feb 19, 2008
    Seattle, WA

    Thanks for the reply. Yes, that does add a "reply-to" box to the new message. Unfortunately, that is a manual process that requires me to type in the reply-in address every time I compose a message. I'd like it to be more automatic. Any other idea?

    Thanks again,
  4. macrumors member


    Jan 12, 2005
    Cleveland, OH
    Bump.... does anyone know how to do this?

    I am constantly responding to clients without remembering to change the FROM setting to my work account.

    Would love a way to select a default.
  5. macrumors newbie

    May 20, 2009
    I use a program called MacPilot. One of its 1000 or so options is "Force Reply-to" header for However, it does override the user Reply-to box in the mail app itself. MacPilot is $19.95 and runs in a 15 day trial mode.

    I believe MacPilot works by changing hidden system preferences, so the option should be in the mail preference file somewhere but I was unable to locate it, sorry.
  6. macrumors newbie

    Feb 1, 2011
    EDIT: This method used to work... doesn't seem to any more... boohoo.

    A Reply-To Header Not Once, Not Twice, But Always

    You know how to add a "Reply-To" header to an email you are composing in Mac OS X Mail, and you do find it useful. But also cumbersome if one wants every outgoing email to carry that information — and that's what you want.

    Fortunately, Mac OS X Mail has a somewhat concealed facility that lets you add any header — include a "Reply-To" line — to emails you send automatically.

    Add a Reply-To Header to All Emails You Send in Mac OS X Mail

    To make Mac OS X Mail add a custom "Reply-To" header line to all emails you send:

    Open Terminal.
    Type "defaults read UserHeaders".
    Press Enter.
    If that command returns "The domain/default pair of (, UserHeaders) does not exist":
    Type "defaults write UserHeaders '{"Reply-To" = "reply-to@address"; }'" (excluding the outermost quotation marks) and replace reply-to@address with the address you want to be used for replies.
    If the "defaults read" command above returns a line of values that starts with "{" and ends in "}":
    Highlight the entire line. It might read something like {Bcc = "bcc@address"; }, for example.
    Press Command-C.
    Type "defaults write UserHeaders '" (excluding the outer quotation marks).
    Press Command-V.
    Type "'".
    Insert '"Reply-To" = "reply-to@address"; ' in front of the closing "}" character, replacing reply-to@address with the email address you want to be used for replies.
    The line might now read defaults write UserHeaders '{Bcc = "bcc@address"; "Reply-To" = "reply-to@address"; }', for example.
    Press Enter.

    Unfortunately, this method of adding a Reply-To header works too well in some situations. Once in place, there is no way to make Mail not append it to a particular mail. You cannot change the address while composing a message either.

    To make any changes to the Reply-To header, you have to go the route of the terminal.

    Disable Automatic Reply-To Headers Again in Mac OS X Mail

    To turn off all "Reply-To:" headers:

    Execute "defaults delete UserHeaders" at a Terminal prompt to delete all custom headers or set UserHeaders back to what it was before you added "Reply-To".

Share This Page