If you change your email address you need to do the following as an MFL organiser, in addition to telling people about the change:
(1) In Zulip go to your profile & account settings and change your email address
(2) Log into the MFL web, view your profile and change your email address
(3) When the next email is sent from the MFL mailing list, use the link provided to update your email address.
If you are no longer receiving emails to your old address, you need to ask an administrator to update the email address in the mailing list.