How to Create an Attractive HTML Email Signature For Mail on Mac OS X High Sierra 10.13

Mac Mail on Mac OS X High Sierra 10.13

Read this post to create an attractive HTML email signature for Mail (Version 11.2) running on Apple’s latest operating system Mac OS X High Sierra (Version 10.13). If you need instructions for creating and installing an HTML email signature on OS X Sierra or earlier Mac operating systems, click this link: http://mydesignpad.com/htmlsignature-install-instructions/

Make sure you have the following before you start:

  • A Mac computer running on Mac OS X 10.13.X High Sierra
  • Mail (Version 11.2)
  • TextEdit (Version 1.13) to read and edit HTML codes
  • A email signature design written up in HTML codes. Use MYDESIGNPAD’s HTML email signature design service if you want us to create a great looking signature design for you
  • A web server for hosting images used in your design.
  • (We offer free images hosting if you use our HTML email signature design service)

STEP 1: Create Placeholder Signature

  • Open Mail.app
  • Go to Mail>Preferences…>Signatures

Yosemite Mac Mail Preferences

  • Click the + icon located on the bottom of the 2nd column (middle) and name it. I will name it: MDP-iMac

Yosemite Macmail Preferences Signature Setup1

STEP 2: Assign Signature to Email Account

  • Drag MDP-iMac into the email account you want on the 1st column (left)

yosemite-macmail-preferences-sig-setup2

  • Click and highlight the email account on the 1st column (If you have more than one email account, click on the account you want this email signature to work with)
  • Select MDP-iMac from the Choose Signature drop-down menu.

yosemite-macmail-preferences-sig-setup3

STEP 3: Check Settings for Composing

  • Go to Mail>Preferences…>Composing
  • Make sure Rich Text is selected for “Message Format”

yosemite-macmail-preferences-composing

STEP 4: Check Settings for Viewing

  • Go to Mail>Preferences…>Viewing
  • Make sure Load remote content in messages is checked

yosemite-macmail-preferences-viewing

STEP 5: Quit Mail.app

  • Press Command+Q or click on Mail>Quit Mail

STEP 6: Set TextEdit.app to Display HTML Codes

  • Open TextEdit.app: ~/Applications>TextEdit.app
  • Go to TextEdit>Preferences…>Open and Save
  • Check Display HTML files as HTML code instead of formatted text
  • Check on the red dot on the upper left hand corner to close window

yosemite-macmail-textedit-setup

STEP 7: Copy HTML Codes

  • Open your email signature HTML file with TextEdit. A HTML file will be emailed to you if you use MYDESIGNPAD’s Email Signature Service
  • Once the file is open, you will see the HTML codes. Select all (Command+A) and Copy (Command+C) to your clipboard
  • Quit TextEdit

STEP 8: Locate Placeholder Signature

  • Click on your desktop to reveal Finder.
  • On the main menu, go to Finder>Go>Library (press and hold the option key to reveal Library on the drop-down menu)

yosemite-macmail-openlibrary

  • Go to ~/Library/Mail/V5/MailData/Signatures/
  • Turn on List view and click on Date Modified to display the latest files on top
  • The placeholder signature you just created is the file ending with .mailsignature with the most recent modified date

yosemite-macmail-findplaceholdersignature

STEP 9: Update Placeholder Signature

  • Open the placeholder signature file with TextEdit

yosemite-macmail-openplaceholdersignature
yosemite-macmail-openplaceholdersignature2

  • Select and delete everything under the Mime Version… line
  • Press Command+V to paste the HTML codes copied in STEP 7. (Your HTML file is emailed to you if you are using our Email Signature Service)

yosemite-macmail-replacesignatureinfo

STEP 10: Lock Updated Signature File

Very important step to follow in order for signature to work.

  • Click the downward triangle located on the top right of the opened placeholder signature file
  • On the pop-up menu, click to check the Locked box
  • Quit TextEdit

yosemite-macmail-replacesignatureinfo2

Lock file

STEP 10: Check Signature in Mail

  • Open Mail back up
  • Click on the Compose new message button to open a new message window
  • The new HTML email signature should appear automatically
  • If the HTML email signature doesn’t show up, make sure the correct email account is selected on the From drop-down menu below the Subject line
  • Make sure the correct HTML email signature is selected in the Signature drop-down menu if you have more than one signature installed

yosemite-macmail-checkemailsignature

Installation Completed

Congratulations! That is it! Hope you got it working as it should. Go on with Mail as usual. Happy email writing. Contact me or leave a note if you have any questions or comments. If you want a creative and visually appealing HTML email signature and would like to have MYDESIGNPAD create one for you, please click on link for more info: http://mydesignpad.com/htmlsignature/

March 9th, 2018 | Tutorial | 1635 Views | 3 Comments ›

3 comments »

  1. April 10th, 2018

    Ava says:

    thank you so much!!

  2. July 10th, 2018

    Austin says:

    Hi there,

    I’ve been following your tutorial and trying for weeks to load my photoshop created signature into apple mail. Every time I think I have it, it either shows up without images or is broken apart. Can you please help :) If I need to load the images onto a server, how do I do that?

    Thanks!

  3. July 17th, 2018

    Tim Cai says:

    Hi Austin, sorry to hear about your trouble. The trick to creating a HTML email signature is that it has to be designed with html codes using basic html coding. If you are creating your design with photoshop and not have your images loaded onto your web server than you may be doing it wrong. To upload images to a web server, you need access to your web server and once logged on, you simply upload the images to your desired folder and the link to your images will be like this:www.website.com/folder/imagename.jpg. I have a service creating HTML signatures with free image hosting service, please check out my service page for more info: http://mydesignpad.com/htmlsignature/

Leave a comment * Required fields.


About

  • "Sure someone else could have created a greater logo redesign for EME Lighting but I was sold on Tim’s diligence & reliability plus I love our new logo! It is fresh, symbolic of who we are while staying in line with our brand intention."

    - Bill Lee
    CEO of EME Lighting
  • "Tim is a trustworthy and effective designer. He redesigned the entire visual identity system for my company & I am extremely pleased with it. As the CEO of a company with over 3000 employees, I would recommend Timmy to anyone looking to have some serious design work done."

    - Tony Ou
    CEO of Senqiu Lighting
  • "Tim effectively designed my website and newsletter. What impressed me the most was his ability to create the images, style and design I was looking for. I highly recommend him if you are looking for someone reliable, flexible and talented."

    - Christine M.
    Owner of Acupuncturebody
  • "Tim has a great personality that makes him a pleasure to work with. He is focused, hard working & always has an attention to details. He has great curiosity and constantly strives to learn & develop himself taking his work to the next level"

    - Slava S.
    Director of Creative Services at STV
  • "Tim conceptualized original ideas & executed the design brilliantly. He always made sure the highest technical & design standards were met. I could always count on him to translate the client vision into reality."

    - Linda G.
    VP Biz Dev. at Real Estate Arts
  • "Tim is a highly talented designer. He has excellent technology skills, amazing dedication & terrific interpersonal abilities."

    - Michael S.
    AD at Real Estate Arts
  • "Timmy is a very talented designer, he is passionate and reliable, his work is always creative & on time. He’s a good person with lots of energy, which makes him a pleasure to work with."

    - Jess L.
    AD at Sudler & Hennessey
  • "Timmy got a great system for helping you figure out what you want, need & putting those ideas down into a tangible product. He has done 3 sites for me already & anyone I have recommended him to has called me back to thank me."

    - Vahram S.
    Owner of Brooklyn Body