SMTP Extension / Microsoft Exchange Help

[STI-IT]

Hey guys, I'm having some issues with setting up SMTP on my DokuWiki Site. Its running on a windows 10 VM with IIS and iIm trying to send emails through our onsite exchange server using the SMTP extension. I had no issue setting up email with our SNIPE-IT site that's hosted on the same machine so I don't believe it's my configuration. This is the error i get from the STMP testing tool. Any suggestions as to where the issue could be at?

Set: the server
Set: the auth
Set: a message will be sent
Connecting to "mail.exchange.com" at 587
Got: 220 "Exchange Server" Microsoft ESMTP MAIL Service ready at Mon, 3 Aug 2020 08:02:39 -0500
Sent: EHLO "Web Server Name"
Got: 250-"Exchange Server" Hello [IP Address]
Got: 250-SIZE 36700160
Got: 250-PIPELINING
Got: 250-DSN
Got: 250-ENHANCEDSTATUSCODES
Got: 250-STARTTLS
Got: 250-AUTH GSSAPI NTLM
Got: 250-8BITMIME
Got: 250-BINARYMIME
Got: 250 CHUNKING
Sent: STARTTLS
Got: 220 2.0.0 SMTP server ready

Other Information:
DokuWiki version: Release 2020-07-29 "Hogfather"
PHP version 7.3.20

[haneef95]

Plugins works fine with the default SMTP settings for Microsoft 365 Exchange Online. Just needed an App Specific Password due to MFA.