We recently sent our monthly email to a group of clients on Jan 17th. We came across this unusual behavior, there were a large number of bot clicks registered 2 - 3 hours later from the email being delivered (except the hidden link we have on the email template ). We raised it with Marketo Support & we were told that we can't control the behavior of third party email scanners (some are even advanced enough to only click on some links or wait a certain period of time before clicking links). Has anyone faced similar issue? Is there a way to over come this?
Thank you in advance!
The steps mentioned in the correct answer in this thread - Spam filters registering clicks? , should be helpful.