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Anyone Using Amazon SES + FluentSMTP + FluentCRM?

I'm having a strange error when someone buys a product. For whatever reason, I get an error from Amazon SES in my FluentSMTP logs saying "The security token included in the request is invalid."

It's usually on the "Purchase Receipt #INV-" receipts mailed to the users. I have NEVER had a failure of a send not associated with a purchase; so all my normal FluentCRM automations go out just fine. What's super odd is when I did a purchase of my product I couldn't replicate the issue. Also, when I press retry in FluentSMTP, it works flawlessly.

I've worked with support but they think it's just an Amazon issue. So I'm reaching out to you guys seeing if you have the same setup with me and have noticed the same thing?

Anyone Using Amazon SES + FluentSMTP + FluentCRM?

Chris Davis

I'm using that exact setup (and have been for years) without error, thankfully. Because I would have no clue how to troubleshoot it outside of asking Claude.