[ceph-users] CERTIFICATE_VERIFY_FAILED ?

Hi guys I'm thinking I've my alerts configured a ok yet clusters warns: ... CEPH status is: HEALTH_WARN unable to send alert email [WRN] ALERTS_SMTP_ERROR: unable to send alert email [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate (_ssl.c:998) ... Do you know what I might be missing or getting something wrong? many thanks, L.