A. All confirmations of password requests / changes, show tickets or guild video requests are sent automatically from firstname.lastname@example.org.
This is a machine source and many internet servers are set to reject such e-mails as potential SPAM.
We have registered email@example.com as a valid source
In some cases a member may have an invalid or out of date e-mail address in their membership records.
Some e-mail servers send machine sourced e-mails to a SPAM folder so it is worth checking your spam folder on your web mail service.