[2020-12-21 16:53:10] local.ERROR: Expected response code 250 but got code "550", with message "550 5.7.0 Mail quota exceeded for app@mysmart-automation.com: You have exceeded the limit of 200 messages per hour and per account. Please, re-try later.
"  
[2020-12-21 17:54:59] local.ERROR: Expected response code 354 but got code "421", with message "421 4.7.0 player763.ha.ovh.net Error: too many errors
"