I am trying a small example with AWS API Gateway and IAM authorization. The AWS API Gateway generated the below Endpoint :
https://xyz1234.execute-api.us-e
I was also facing this issue , added
correctClockSkew: true
and issue fixed for me
const nodemailer = require('nodemailer');
const ses = require('nodemailer-ses-transport');
let transporter = nodemailer.createTransport(ses({
correctClockSkew: true,
accessKeyId: **,
secretAccessKey: **,
region: **
}));