New Member not receiving OPT-IN email

Hi. I added a new member to our club list and almost immediately received a copy of the opt-in email that was sent to her. She however, did not receive the opt-in email. I resent is several times to no avail. She has checked and rechecked her spam/junk folders and cannot find it. Her name is Linda Lee and her email is lindslee124@mac.com. I got a message today that her information will be deleted in 3 days, as the 30 day deadline to opt-in is almost up. Please advise. Club is the Conquerors Club #9828. 9828.toastmastersclubs.org/

Verify her email address. lindslee124@mac.com appears to be invalid.

Typos are common in email addresses. Please check it again.

Thank you-- I did verify her email address already. It is lindalee124@mac.com She receives emails from the International website using this address, so it works

Sorry-- the typo was in my help request to you. Lindalee124@mac.com is correct and what I have been using-- not lindslee124@mac.com

Lindalee124@mac.com still comes back as bad. We will not send to bad email addresses.

Okay-- any suggestions? What do you mean by "bad?" So I can tell her...
Thank you