Custom smtp usage issue

Hey, guys it there any solution for the problem

wrong version number

wrong version number

while custom smtp usage?

{
  "library": "SSL routines",
  "function": "ssl3_get_record",
  "reason": "wrong version number",
  "code": "ESOCKET",
  "command": "CONN"
}

{
  "library": "SSL routines",
  "function": "ssl3_get_record",
  "reason": "wrong version number",
  "code": "ESOCKET",
  "command": "CONN"
}

Custom smtp usage issue - Novu