sending email messages via toasthost get bounced back

I am the admin for Ocotillo Breakfast club Toastmasters website, club number 8837. When i try to send an email to
Steve  email address stevedairyvet@

The system is sending you email chaeck your spam box.
also follow these docs
Receiving email , if you're not getting emails and especially if you use gmail or hotmail
support.toastmastersclubs.org/doc/item/e...ers-receive-emailMay 29 23:11:50 toastmastersclubs sendmail[1625393]: 64TNBFDu1624491: to=<stevedairyvet@gmail.com>, ctladdr= (1000/1000), delay=00:00:01, xdelay=00:00:01, mailer=esmtp, pri=34293, relay=gmail-smtp-in.l.google.com. [172.253.63.27], dsn=2.0.0, stat=Sent (OK 1780096310 af79cd13be357-91536a19d17si254529685a.500 - gsmtp)


May 30 16:38:14 toastmastersclubs sendmail[2332482]: 64UGcEWc2332479: to=<stevedairyvet@gmail.com>, ctladdr= (1000/1000), delay=00:00:00, xdelay=00:00:00, mailer=esmtp, pri=38065, relay=gmail-smtp-in.l.google.com. [172.253.63.26], dsn=2.0.0, stat=Sent (OK 1780159094 d75a77b69052e-51741deaf95si15067181cf.243 - gsmtp)