It's possible the server may have had problems when your emails were sent or the address may have been (un)intentionally dropped. Due to the high volume of spam on the net, many sites don't use a catchall anymore to trap emails sent to non-existent addresses. If there aren't any others listed on the site, you can always use the info in the whois database.
Administrative Contact:
Tayler, Judy jtayler@telus.net
1850 Comox St
Suite 1004
Vancouver, BC V6G1R3
CA
1-604-684-7024
If you still cannot reach her, then you can contact: EV1 Servers Customer Service (domains@ev1servers.net) and tell them this domain has wrong info in the whois database. Registrars are required to make customers provide valid contact info or take the domain away.
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"We simply attempt to be fearful when others are greedy and to be greedy only when others are fearful."
-- Warren Buffett