Spammers have the habit of hiding some bad or malicious URLs behind the safe looking links. Due to this spam filters checks and scans for each and every available links in the email campaign and at times they might alter the way they get displayed for some subscribers which depends up on the device they use.
At times, the subscribers spam filter might push the redirected link code from the link tracking, to that in to your email content when it displayed to your subscribers. When the subscribers find it to be difficult then turn tracking off, send them a copy of your email campaign. If it seems to be good for your subscribers then ask them to contact their system operator to find out what went wrong. Why because in some cases, antivirus software might raise such issues to happen. This vary with subscriber to subscriber hence it is better to contact the IT person to know more and to rectify the issue.
Want to have a trail run for your campaign? Do you want to test the quality of the service we offer? One of our customer advisers will call you to discuss about your requirement and set up a free trail account for you.