Sending an email template without pictures?

Question

PHP

The letter is sent with a template, but the pictures are not shown, tell someone why? They are displayed in the browser, but not in the letter (

Code here

Answer 1

As a variant of the picture, add an attachment to the letter and write src on them.
Although I don’t remember any problems when I specified image addresses as <img src=" domen.ru/abc.jpg "> where src is the full url to the site where the images are located

Answer 2

ok code. And everything is in the rules of other services.