TEST Ensure SES Mailer can handle large recipients lists

[stephenmcm]

This module will likely need testing and code added to support sending in batches as SES is 50 recipients per request limited.

[rodneyway]

Further to this - handling of throttling failures due to daily limits being exceeded needs attention.

Further details here: https://docs.aws.amazon.com/ses/latest/DeveloperGuide/reach-sending-limits.html

[nglasl]

Thank you for your contribution here. I just wanted to let you know that we’re looking to improve our management of issues and pull requests, with a goal to providing clear direction on how Symbiote contributes to the open source community. As part of this ongoing effort:

• issues and pull requests that have been open prior to December 2017 with no recent activity are being closed

  • this is included

  • if you can confirm this remains applicable for SS3.6+ please do open it again

• remaining issues and pull requests will be

  • categorised

  • on a clear path to resolution (whatever the next step may be).

This ultimately brings us one step closer to our ambition; being able to prioritise current issues and contributions in a timely manner. If you have any questions, please see https://www.symbiote.com.au/contributing for further information.