421 4.3.0 临时系统问题。稍后再试 (10)

Question

我正在使用nodemailer npm 包和gmail 作为nodejs 中的服务。对于某些电子邮件，我收到以下错误，

 Data command failed: 421 4.3.0 Temporary System Problem.  Try again later (10). c124sm10820896qke.13 - gsmtp
at SMTPConnection._formatError (/home/ubuntu/node_12-24/Roo-Node/node_modules/nodemailer/lib/smtp-connection/index.js:606:19)
at SMTPConnection._actionDATA (/home/ubuntu/node_12-24/Roo-Node/node_modules/nodemailer/lib/smtp-connection/index.js:1449:34)
at SMTPConnection._responseActions.push.str (/home/ubuntu/node_12-24/Roo-Node/node_modules/nodemailer/lib/smtp-connection/index.js:1421:26)
at SMTPConnection._processResponse (/home/ubuntu/node_12-24/Roo-Node/node_modules/nodemailer/lib/smtp-connection/index.js:762:20)
at SMTPConnection._onData (/home/ubuntu/node_12-24/Roo-Node/node_modules/nodemailer/lib/smtp-connection/index.js:558:14)
at TLSSocket._socket.on.chunk (/home/ubuntu/node_12-24/Roo-Node/node_modules/nodemailer/lib/smtp-connection/index.js:510:47)
at emitOne (events.js:116:13)
at TLSSocket.emit (events.js:211:7)
at addChunk (_stream_readable.js:263:12)
at readableAddChunk (_stream_readable.js:250:11)
at TLSSocket.Readable.push (_stream_readable.js:208:10)
at TLSWrap.onread (net.js:597:20) 

我看到了很多关于此的事情，但不是一个完美的解决方案