MailShield blocks Thunderbird from sending email

Hello

When MailShield is enabled, I am unable to send emails using my hoimail account.

Outgoing: smtp-mail.outlook.com:587
Security: STARTTLS / OAuth2

Is anyone else experiencing the same issue ?

Thunderbird version: 128.1esr (64-bit)
Avast version:
UI version: 1.0.811
Program version: 24.7.6124 (build 24.7.9311.866)