I run a EU-based website on Amazon EC2, and currently send around 13,000 emails a day through Amazon SES. Much of the email throughput is during the early hours of the morning.
Now that Amazon SES has instances in Europe, are there any advantages to me switching from the current US-west SES servers into Europe? Does it make any difference in terms of deliverability or anything else?
The only benefit I can really see is one of slight speed increase; but email sending is done away from anything user-facing anyway.