Carolina Valentino
10-22-24
Hi Piotr
code 421:
The HTTP 421 Misdirected Request client error response status code indicates that the request was directed to a server that is not able to produce a response. This can be sent by a server that is not configured to produce responses for the combination of scheme and authority that are included in the request URI.
what that actually means -
Could be..
incorrect address of SMTP server? or maybe our SMTP integration is now outdated with some SMTP server -
that message does't say anything about "why" - that is just some server to server communication error stuff