我已经设置了一个带有postfix的服务器来发送邮件。但是,当我试图向gmail帐户发送电子邮件时,会发现以下错误:
May 16 23:41:47 vps4195 postfix/smtp[15949]: certificate verification failed for gmail-smtp-in.l.google.com: num=20:unable to get local issuer certificate
May 16 23:41:47 vps4195 postfix/smtp[15949]: certificate verification failed for gmail