XF 2.3 Akismet server / API problems?

[ISPr_Winter]

Anybody getting lots of CURL errors due to the Akismet anti-spam service today? Like these (replaced my API key with [API KEY] below):

GuzzleHttp\Exception\ConnectException: Akismet HTTP error: cURL error 35: OpenSSL SSL_connect: SSL_ERROR_SYSCALL in connection to [API KEY].rest.akismet.com:443 (see https://curl.haxx.se/libcurl/c/libcurl-errors.html) for https://[API KEY].rest.akismet.com/1.1/comment-check src/vendor/guzzlehttp/guzzle/src/Handler/CurlFactory.php:210

GuzzleHttp\Exception\ConnectException: Akismet HTTP error: cURL error 52: Empty reply from server (see https://curl.haxx.se/libcurl/c/libcurl-errors.html) for https://[API KEY].rest.akismet.com/1.1/comment-check src/vendor/guzzlehttp/guzzle/src/Handler/CurlFactory.php:210

I checked the Akismet API url above (https://[YOUR API KEY].rest.akismet.com/1.1/comment-check) and it's returning a 500 internal server error, but I'm surprised more people aren't reporting this. Also get the same for https://rest.akismet.com/1.1/comment-check .