Because the content of the email may be copied directly, there is a typo. Unable to send mail when unreadable characters appear. Even if the mailbox is delivered directly by hand, you will be prompted that special characters cannot be sent. Solution: Preview the contents of the email template to see if there are any special characters or garbled codes, and correct them.

2. The path of the image inserted in the email template has been changed, which is a common reason:

Normal e-mail content is inserted in the picture. You can't delete or change the name of the picture or change the source path of the picture. Solution: Put the picture to be inserted into the specified folder, and it cannot be deleted.

3. When making the import template in htm format, you need to save the source file, and the path of the source file cannot be changed at will. Otherwise, the picture cannot be displayed. The mail could not be sent.

4. Inserting a picture into the template does not display the picture:

It is the same problem that the picture is not displayed in the template because the path of the picture has changed. Or the name of the picture has changed, resulting in the picture not being displayed normally in the email.