How to Set Default Email Address in Mail for Mac OS X

May 31, 2016 - 12 Comments

Mail app icon

Mac users who have multiple email accounts setup with the Mail app may wish to change or set the default email address that is used throughout Mac OS X. This can help to prevent accidentally sending an email from the wrong email address, which should be particularly helpful for those who juggle work and personal email accounts within the Mail app.

What this is going to do is set the default email account for any new email message composition in the Mail app. That includes new mail compositions created from within and also elsewhere in Mac OS X, like a mailto link in a web browser or another app. To be clear, this does not disable the other email accounts or disallow their use in Mail app, it simply sets the preferred address to be the default for mail. Even after setting this you can continue to switch mail addresses easily in compositions.

Changing the Default Email Account in Mail for Mac

You obviously need multiple email accounts setup on the Mac for this to be an option, aside from that this process is the same with any modern version of Mail app for Mac:

  1. Open Mail app in Mac OS X if you haven’t done so already
  2. Pull down the “Mail” menu and choose “Preferences”
  3. Go to the “Composing” tab
  4. Look for “Send new messages from:” and pull down the ‘Account of selected mailbox’ dropdown menu to select the email address to use as the new default
  5. Set default email address in Mail for Mac

  6. Close out of Preferences when finished

Now the next time you go to compose a new email message, either from Mail app or elsewhere, that email account selected will be the new default email address that any new mail is sent from. If the chosen email account uses an HTML signature, that will also be included by default with each new mail message.

Changed default email address in Mail for Mac OS X

For those of us who use Mail for personal and professional email accounts, this setting pairs well with always showing the complete full name and email address of recipients in Mac Mail so that you can be sure you’re not only defaulting to writing from the proper email address, but also sending and corresponding to the proper addressee.

By the way, if you’re adjusting this on the Mac you’ll almost certainly want to change the default email account on iPhone and iPad too, assuming you use the same email addresses on the go as well.


Related articles:

Posted by: Paul Horowitz in Mac OS, Tips & Tricks


» Comments RSS Feed

  1. Meerah says:

    I have a few email addresses in a mac mail account, but want the address I’m sending from to always be just one of them. So if someone emails my account, I hit reply and am automatically responding from I do have the option to select the email I want to send from from the dropdown, but don’t want to have to remember to do it every time.

    Is there anyway to do this with Mac mail? I don’t want to change email clients.

  2. Becky says:

    Thank you, Mail constantly defaulted to an old, offline email account, that I hardly ever used but don’t want to delete, to send new emails (why?). This advice is still relevant today and worked for me :)

  3. Appvn Apk says:

    I’ve the same issue but now, It got solved after this post.

  4. Linda says:

    My problem is that although I have 4 email addresses set up in Mail, when I go to the drop down menu “Send messages from” only my apple email addresses ( and show up and not any of the others.

  5. Walter says:

    Hi. Question for you. I accidentally Deleted my main email acc in preferences. Every time I try to reinstall it , I get this acc already Exsist’s ! But it’s not in the list of accounts. Short of using Time machine to go back before I deleted it , any way of reinstalling it ? Thks in advance Walter.

  6. Brian says:

    This makes Our life more enjoyable. Was frustrating needing to remember to check the send email account each time. These tricks are hidden form Us less experienced young old peoples :-O
    You can teach an old dog new tricks …….. sometimes!!!!!

  7. ososX says:

    Is there a way to associate different contacts in my contact list with different emails. Thus, I want to define a list of contacts that will receive emails from my iCloud account (say family), a second list that will receive emails from my work email, and a general list that receives emails from my gmail account. This can me a lot of time and confusion …

  8. Boise Ed says:

    I wish this worked for me, but it doesn’t. My domain-name email address ( points email to my gmail account. I have the “Send new messages from” set as you say, and the “From” line on the mail-composition window says “” but recipients get my gmail address in the “From” line.

  9. Sebby says:

    Thanks for reminding me about this. I just set it to my list alias rather than my primary account, because I reply to mailing lists more often than I correspond personally.

    What I wish is that the Mountain Lion behaviour of defaulting the email address based on the recipient would come back. In this way, mailing lists always default to sourcing from your chosen address, while all other correspondence goes to the default. This was broken as of Mavericks, and I have a note here to report it to Apple, someday. Sometimes I find that if I reply to myself, to follow up on what I’ve already said, the From is already set, but I think that’s expected behaviour; Apple Mail is one of the few clients that sensibly sets the recipient fields when replying to yourself (it uses what you used before, instead of just replying to yourself).

  10. Wharff Xanadu says:

    This helps me out a lot! I have spent months trying to do this. Thanks Paul.

    • Paul says:

      You’re welcome! It’s not the most clearly labeled setting out there, but it sure is useful if you juggle multiple email accounts in Mail for Mac.

Leave a Reply


Shop on and help support OSXDaily!

Subscribe to OSXDaily

Subscribe to RSS Subscribe to Twitter Feed Follow on Facebook Subscribe to eMail Updates

Tips & Tricks


iPhone / iPad



Shop on Amazon to help support this site