Your clients can unsubscribe to your emails in case they don't want to receive them anymore.
That can also happen with clients that accidentally unsubscribe to your email. You have 2 options to get them back on your email list. You have 2 options to get them back on your email list. They can send an email to [email protected] asking to be added back to the email list, adding their names and the gym they belong to. They can text your location number the key code "myemail".
You can also ask them to save your location email address and mark it as important. Please make sure they send you an email, we recommend having at least one inbound email per each 10 outbound emails to avoid their email carriers blocking your emails.