I’m using Meteor’s Email.send function with Amazon SES (Simple Email Services). I’m asking those who are using amazon ses, should I do anything since i got this email:
We are extending support for Signature version 3 until February 28, 2021 (the previously announced deprecation date was October 1, 2020). Beginning March 1 2021, support for Signature Version 3 will be turned off in Amazon SES, and only Signature Version 4 will be supported going forward. Amazon SES customers who are currently using Signature Version 3 must migrate to Signature Version 4 by February 28, 2021. After that, Amazon SES will only accept requests that are signed using Signature Version 4.
You can easily identify API requests that use Signature Version 3 by looking at the request headers. Requests that use the Signature Version 3 resemble the following example (note the “AWS3”):
X-Amzn-Authorization: AWS3-HTTPS AWSAccessKeyId=AKIAIOSFODNN7EXAMPLE,Algorithm=HMACSHA256,Signature=lBP67vCvGl …
To move to Signature Version 4:
If you are self-signing your requests, refer to our documentation for Authenticating requests to the Amazon SES API  and creating a canonical request for Signature Version 4 .
If you are not self-signing your requests, simply update your SDK/CLI to the latest version.