How to allow arrow keys in read command

I made a bash script to use sendmail to send emails. However, when it asks for input, whenever I try to use the arrow keys to correct a typo, instead of moving the cursor, it just adds ^[[D to the end. How can I fix that?

How do I use the arrow key in CMD?

You can simply press Shift-right-arrow, and then start typing. In contrast, to these combination shift-arrow commands which move the cursor to the beginning and end of lines, the Ctrl-left-arrow and Ctrl-right-arrow keys move the screen image 20 spaces in the opposite direction to the arrow, without moving the cursor.

Use the -e option to read. From the bash manual:

-e
Readline (see Command Line Editing) is used to obtain the line. Readline uses the current (or default, if line editing was not previously active) editing settings.