In this meme, a group of men sit around playing cards. The hand in the lower left corner is labeled 'E-mail trying to send you to a tracking site." A man across from him, labeled "Thunderbird," is rising to his feet with a card raised above his head. But where the card should be is a notification screencap. The notification reads "Link Mismatch Detected. The link you just clicked seems to lead to another site than what the link text indicated. This is sometimes used for tracking whether you clicked the link, but it could also be a scam. The link text indicates that the link would lead to mastodon.social, but it leads to u1512583.sendgrid.net." Then there are three buttons. The left button reads "Go to u1512583.sendgrid.net anyway," the middle button reads "Cancel" and the right button, which is highlighted in blue, reads "Go to mastodon.social."
https://files.mastodon.online/media_attachments/files/111/505/850/357/319/231/original/b79c0aa1e52ad152.jpg