No provider for smtp exception using AWS SES

Description

I'm all of a sudden getting the following errors when trying to send email. Some emails send fine, others don't. I have over 1K emails stacked up in my mail tasks

My email config in Lucee is:

When I try to send a test message for this smtp server, Lucee indicates that the task succeeds with the message: "Test mail has been sent successfully using [ email-smtp.us-east-1.amazonaws.com ]." but the message does not get delivered. The undelivered mail does show up in tasks, and fails again when I try to execute the task manually.

An aside, the problem very specifically started on Oct. 2, which may have coincided with my last Lucee update, but I cannot recall the exact date that I updated so I cannot confirm that the update was the problem. Is there a way for me to determine the last time Lucee was updated to determine if the update caused the problem?

Environment

Windows Server 2016

Status

Assignee

Unassigned

Reporter

JP

Labels

None

Affects versions

5.3.2.77

Priority

New
Configure