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After upgrading to version 188.8.131.52 from 2.0.x I get AWS access errors. I deleted and created new Access Keys for the sendy user, I detached and re-attached the AmazonSNSFullAccess policy and even deleted and re-created the sendy user all together, always updating credentials in sendy's settings page.
User with policy in AWS console: http://imgur.com/a/Bm3Uj
Access keys in AWS console: http://imgur.com/a/F9P0R
Access keys in Sendy: http://imgur.com/a/NGInz
Your Sendy installation is unable to get your SES quota from Amazon because you did not attach "AmazonSESFullAccess" user policy to your IAM credentials. Please re-do Step 5.2 and 5.3 of the Get Started Guide carefully to resolve this error.
You need to attach BOTH AmazonSESFullAccess AND AmazonSNSFullAccess to your IAM credentials. Please follow the video in Step 5 of the Get Started Guide (https://sendy.co/get-started#step5) very closely.
Thanks Ben, I did only have one of the two policies attached. Apologies for the silly mistake and thanks for pointing that out. All working now :) Have a nice day!