How check our email has been read in webmail using PHP
问题 Is there anyway we can track our email has been read or not using php. If i am sending mails to 10 persons i need to know how many people has read the email and their email address. Is there a way to do this Thanks in advance 回答1: You can use image bugs aka tracking pixels (because they are usually invisible 1x1 images). Don't expect this to be 100% reliable, since there's a chance that because of that email clients will flag your emails as spam. Some clients just won't request images at all.