Member does not get email when trying to reset password

A member cannot log on. He has a valid email address and yet when he resets PW no email ever arrives - he has checked spam. This has been going on for quite a while and a call to him would really help

Club Name: JCCNS Toastmasters Club
Club # 3743398
Member Name : Lee Murray
Member Number to call : 978 740 3932

Thanks

My name is Tom Cheatham
781 476 9905 work
617 510 2810 cell

His mail server is on a shared server that has spammed our server before.

I have opened the IP for now, he should have received an authorization request.

Nov 19 18:10:00 toastmastersclubs sendmail[22637]: tAJI9x9m022634: to=<mlee@nextexec.com>, ctladdr= (501/502), delay=00:00:01, xdelay=00:00:01, mailer=esmtp, pri=120825, relay=nextexec.com. [192.185.52.216], dsn=2.0.0, stat=Sent (OK id=1ZzTeg-000Hdk-Nd)