David McDonald 36614e5492 Log warning for SES send rate throttling rather than exception ...

We have hit throttling limits from SES approximately once a week during
a spike of traffic from GOV.UK. The rate limiting usually only lasts a
couple of minutes but generates enough exceptions to cause a p1 but with
no potential action for the responder.

Therefore we downgrade the warning for this case to a warning and assume
traffic will level back out such that the problem resolves itself.

Note, we will still get exceptions if we go over our daily limit, rather
than our per minute sending limit, which does require immediate action
by someone responding.

If we were to continually go over our per second sending rate for a long
continous period of time, then there is a chance we may not be aware but
given the risk of this happening is low I think it's an acceptable risk
for the moment.

2020-08-13 17:51:09 +01:00

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