SES (Simple Email Service) Signing Details

This page describes some options for using the Amazon SES signing service.

Basic Usage

After signing up for your free account, you can simply change the endpoint to You don't need to calculate the signature, just make sure that your AWS Access Key is in the X-Amzn-Authorization Header and APSigning will do the rest

GET versus POST

Query parameters may be submitted to either via GET or POST. Once the signature is calculated, the service will submit the request to the Amazon server from the APISigning IP Address. The exact response returned from Amazon will be returned to your application, including applicable headers


By default, APISigning will submit requests to If you need to change the hostname, send a X-Amzn-Host header with the desired server name

Free Account

** SES Requests Count in increments of three **

A free account allows up to 30,000 requests per month. Since SES request count in increments of three, so that is effectively 10k SES requests per month. If your application exceeds that, we'd ask that you upgrade to a paid account. Sign up for a free account on the Sign Up page. Exceeding your monthly limit will result in requests being delayed.

After your account is created, you can monitor your usage at any time. If you don't know how many requests your application will use, get it working with a free account and use the usage report to predict how many requests you will use over a month


For users who require more than the 30,000 free requests, we also offer a paid service. Pricing is tiered based on the expected number of requests. If you don't know how many you'll use, just start out at the smallest level and it can be adjusted later if needed.

  • Up to 30k requests/month: Free
  • Up to 60k requests/month: $6.00/month
  • Up to 100k requests/month: $10.00/month
  • Up to 200k requests/month: $18.00/month
  • Up to 300k requests/month: $25.00/month
  • Up to 500k requests/month: $35.00/month
  • Up to 1 Million requests/month: $50.00/month

To sign up just for a paid account, just visit the Payment Page and select from the available options. After your PayPal subscription is activated, you can enter the necessary details on our secure form.

Not Quite what you need?

Visit our Custom Services Page if you have some special needs that these don't quite cover. We can likely accomadate whatever you might need