Can not check email on vps ubuntu

[nqmgaming]

Email to check

nguyenquangminh570@gmail.com

From where did you run check-if-email-exists?

AWS Ubuntu VPS

Version of check-if-email-exists (if running it yourself)

0.11.0

What happened?

Previously, the Reacher service was experiencing issues, which made it unusable. As a workaround, I implemented the email verification myself by using the Rust library and the provided release binary. While this solution works correctly on my local macOS system—verifying emails quickly and returning a "safe" status—when I deploy the same solution on my Ubuntu VPS, the email verification takes a very long time and returns a "reachable" status instead. This discrepancy between the local and VPS environments is causing unexpected behavior in the email verification process.

Relevant log output