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A comment on Tell HN: Gmail rate limiting emails from AWS SES. Parent comment

Re:Tell HN: Gmail rate limiting emails from AWS SES by mschuster91 on Friday August 18, 2023 @10:55AM (#37176537)
> If Amazon can't make it work, might just use good old postfix I guess.

AWS blocks TCP25 outbound by default [1].

[1] https://repost.aws/knowledge-center/ec2-port-25-throttle

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