mailgun windows cURL error 60: SSL certificate problem: unable to get local issuer certificate

linux環境正常，windows環境報錯

解決方案

If you want, you can install local ssl certificate. See below steps.

1. Open http://curl.haxx.se/ca/cacert.pem
2. Copy the entire page and save it as a "cacert.pem"
3. Open your php.ini file and insert or update the following line: curl.cainfo = "[pathtofile]\cacert.pem"

可以解決