How to send bulk emails

General
1

Hi, I'm using node-red-node-email to send emails it work fine if we need to send emails around 90 at a time however it fails after reaching certain limit to send email.
I tried smtp pool as well but no luck. can anyone please help me on this the idea is to send reminder emails every day to 200+ people.

https://nodemailer.com/usage/bulk-mail/#:~:text=%20Delivering%20bulk%20mail%20%201%20Use%20a,SMTP%20providers%20happily%20accept%20all%20your...%20More%20?msclkid=e5be4c2ccf8311ec9478c005f2dfbe4chttps://flows.nodered.org/node/node-red-node-email?msclkid=d0e21f8ccf8b11ecb783c1c6fec63cd1

2

Do you get an error message?
Maybe in the debug panel or else try the catch node.

3

Have you checked with your ISP that they don't limit the number of mails sent?

4

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5

getting Error: queryA ETIMEOUT smtp.gmail.com error message after sending few emails

6

Error: Mail command failed: 421 4.7.0 Try again later, closing connection. (MAIL) w8-20020a170902d70800b0015e8d4eb252sm1810168ply.156 - gsmtp

7

First result on Google...

https://www.google.com/search?q=Mail+command+failed%3A+421+4.7.0+Try+again+later%2C+closing+connection&client=ms-android-google&sourceid=chrome-mobile&ie=UTF-8

In simple terms, you are spamming.

You may need to use a dedicated email service that permits bulk sending

Try slowing them down by adding a delay between each send. Like 2s delay set to rate limit mode. Meaning only 30 per minute are sent.

8

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