Per our email logs (see below), the email was delivered to your account. Based on my reading, it looks like iCloud's junk mail filter is very aggressive.
My suggestion would be to create two contacts in your contact list, server@toastmastersclubs.org and agenda@toastmastersclubs.org
Hopefully, that should effectively whitelist FTH emails.
Code:
Apr 6 15:40:57 toastmastersclubs sendmail[9948]: t36FetTd009945: to=<theresapuccio@me.com>, ctladdr=<agenda-4506013@toastmastersclubs.org> (501/502), delay=00:00:02, xdelay=00:00:02, mailer=esmtp, pri=130637, relay=mx5.mail.icloud.com. [17.172.34.68], dsn=2.0.0, stat=Sent (Ok.)
Apr 6 16:05:52 toastmastersclubs sendmail[19750]: t36G5nrI019747: to=<theresapuccio@me.com>, ctladdr=<server@toastmastersclubs.org> (501/502), delay=00:00:03, xdelay=00:00:03, mailer=esmtp, pri=120815, relay=mx1.mail.icloud.com. [17.158.8.68], dsn=2.0.0, stat=Sent (Ok.)
Apr 6 16:30:35 toastmastersclubs sendmail[22860]: t36GURHE022855: to=<theresapuccio@me.com>, ctladdr=<server@toastmastersclubs.org> (501/502), delay=00:00:08, xdelay=00:00:08, mailer=esmtp, pri=1414485, relay=mx2.mail.icloud.com. [17.158.8.70], dsn=2.0.0, stat=Sent (Ok.)
Apr 6 19:21:07 toastmastersclubs sendmail[4955]: t36JL4H1004952: to=<theresapuccio@me.com>, ctladdr=<server@toastmastersclubs.org> (501/502), delay=00:00:03, xdelay=00:00:03, mailer=esmtp, pri=120815, relay=mx1.mail.icloud.com. [17.172.34.10], dsn=2.0.0, stat=Sent (Ok.)
Apr 6 19:39:26 toastmastersclubs sendmail[29344]: t36JdOvw029339: to=<theresapuccio@me.com>, ctladdr=<server@toastmastersclubs.org> (501/502), delay=00:00:02, xdelay=00:00:02, mailer=esmtp, pri=120815, relay=mx4.mail.icloud.com. [17.158.8.51], dsn=2.0.0, stat=Sent (Ok.)
Apr 7 16:54:48 toastmastersclubs sendmail[25913]: t37GsgBA025910: to=<theresapuccio@me.com>, ctladdr=<agenda@yawnpatrol.org> (501/502), delay=00:00:06, xdelay=00:00:06, mailer=esmtp, pri=137181, relay=mx2.mail.icloud.com. [17.178.102.83], dsn=2.0.0, stat=Sent (Ok.)
Apr 7 21:33:31 toastmastersclubs sendmail[19331]: t37LXRoe019328: to=<theresapuccio@me.com>, ctladdr=<agenda@yawnpatrol.org> (501/502), delay=00:00:04, xdelay=00:00:04, mailer=esmtp, pri=136248, relay=mx5.mail.icloud.com. [17.172.34.69], dsn=2.0.0, stat=Sent (Ok.)
Apr 9 06:06:48 toastmastersclubs sendmail[21527]: t3966gXC021519: to=<theresapuccio@me.com>, ctladdr=<server@toastmastersclubs.org> (501/502), delay=00:00:06, xdelay=00:00:06, mailer=esmtp, pri=120815, relay=mx6.mail.icloud.com. [17.158.8.114], dsn=2.0.0, stat=Sent (Ok.)