New members not getting opt-in emails. Please help

Good morning,

We are getting back into the regular club use of our free toast  host site after rebuilding our membership after the pandemic ( winchestertoastmasters.toastmastersclubs.org/ ).

I recently sent four invite emails and they have timed out, sent them to the four again and the most tech savvy of them all (used to work at IBM) said that it isn't in his inbox or spam.

????

What can I do to get these invites to them or is there a way for them to opt-in another way?

Thanks!
Dave Miles
Sec/Tres - Winchester Toastmasters Club #9772

You have put a . (period) after the .com the email program is expecting more text.
Remove the . and resend the welcome email