How to email a countdown timers using Yahoo Mail

Adding inline gif images that not hosted in the Yahoo Gif Tool to messages is not supported by default. But you can add it manually by editing HTML.

Open Yahoo mail, then select Compose to start a new email. In the desired place in your letter type word COUNTDOWN.

Adding a countdown timer in yahoo

If you are viewing this with Chrome then you need to right-click by the word COUNTDOWN and select "Inspect".

Adding a countdown timer in yahoo

In the HTML code look for the words, 'COUNTDOWN', then right-click by the word COUNTDOWN in the HTML elements and select "Edit as HTML"

Adding a countdown timer in yahoo

Then copy and paste the countdown timer embed code into the HTML editor so it replaces the words, 'COUNTDOWN'.

Adding a countdown timer in yahoo

After that, click the close button.

Adding a countdown timer in yahoo

Hover the mouse over the image and select the ellipses (...) located in the upper-right corner of the image to adjust the size of the image.

Adding a countdown timer in yahoo

Adding a countdown timer in Gmail