cn：primary推送及邮件队列报错问题
Failed to bind environmentMailQueue: Could not send mail id: "dmxwMYfm5wBHtACkP", Error: Mail command failed: 451 4.4.2 Timeout waiting for data from client.
MailQueue: Could not send mail id: "GQmT4cHQdotDv3BBs", Error: getaddrinfo EAI_AGAIN email-smtp.us-east-1.amazonaws.com