Mailgun EU does not seem to work and test system just fails to report error.

[barkermn01]

Debug mode

• I have enabled debug mode
• I have read checked the Common Issues page

Describe the bug

Mailgun when using the EU server does not seem to work and there is no error output.

Reproduction steps

1. create an EU Mailgun domain.
2. generate a secret key for said domain
3. update .env to have MAIL_DRIVER=mailgun, add

MAILGUN_DOMAIN='ob.fusca.ted'
MAILGUN_SECRET='obfuscated'
MAILGUN_ENDPOINT='api.eu.mailgun.net'

4. use setup and click Send Test button for Email

Expected behavior

Mail to send or at least give an error.

Screenshots

** Removed to hide email address **

Snipe-IT Version

v6.1.2

Operating System

Ubuntu

Web Server

Nginx

PHP Version

7.4.33

Operating System

Windows

Browser

Edge

Version

115

Device

No response

Operating System

No response

Browser

No response

Version

No response

Error messages

undefined

Additional context

i think this is because i guessed / assumed that the option would be MAILGUN_ENDPOINT to configure this and based my information from #11029 and linked Laravel documentation of https://laravel.com/docs/6.x/mail#driver-prerequisites

[snipe]

This is now fixed on master