There is an error with the email configuration you have provided when on production

sqveeze.last year

4

[21:08:16] ERROR (payload): There is an error with the email configuration you have provided. Error: Connection closed unexpectedly

email: {
    logMockCredentials: process.env.NODE_ENV === "development",
    transportOptions: {
      host: process.env.SMTP_HOST,
      auth: {
        user: process.env.SMTP_USER,
        pass: process.env.SMTP_PASS,
      },
      port: +process.env.SMTP_PORT!,
      secure: false,
      tls: {
        rejectUnauthorized: false,
      },
    },
    fromName: process.env.MAIL_SENDER_NAME
    fromAddress: process.env.MAIL_SENDER_ADDRESS
  },

• 

  jmikrut

  last year

  try running locally in production mode

  
  

  
  

  this is unfortunately something that Payload itself is not really able to diagnose, because it has to do specifically with your email connection / transport

• 

  sqveeze.last year

  @jmikrut still the same, works flawless locally, but what i found out: if i try to send like 10 emails some of them 1-2 is appears in my inbox. I'll try to contact Vercel.

• 

  jmikrut

  last year

  i don't think this has anything to do with Vercel either honestly. I think this has to do with your email service

  
  

  
  

  it

  could

  be that your mail provider has a max number of concurrent connections

  
  

  
  

  and the nature of serverless functions means that you have a lot of open connections at once, and maybe you are maxing out

  
  

  
  

  what is your mail provider? maybe do some research about serverless concurrent connection issues with your mail provider

• 

  sqveeze.last year

  Amazon SES. Should not be a problem i believe. I read it somewhere that vercel has a low 5s max execution time for a serverless function. Which can be also valid cause if i try it a lot of time, sometimes the email arrives.