I tried to send email using SMTP from laravel. I send HTML message. All attribute i used stripped on GMail and outlook. I try send it to yandex, ymail, gmx, and protonmail too. All working good. This problem is only on GMail and outlook.

This is what i trying to send:

<a href="https://google.co.id">Click It</a>

I got this problem recently, i was never get this problem before