Hi @RP08,
I wish there could be a simple answer to any deliverability question ;).
There could be one of the many reasons why your ESP (email service provider) lands your internal emails in the spam/junk folder.
- The sending IPs of the campaign MTA server are not whitelisted on your internal ESP server.
- Check the Global Filters & Rules of your internal ESP to figure out if there's a filter setting acting as a reason for this problem.
- The spam score of your email is high or your email using SPAM trigger words.
- Check if there is any Anti-spam protection policy or settings applied by your ESP.
So, in short, if the problem of the emails landing in the Junk/Spam folder is happening only for your internal ESP then there is nothing much that can be done from the campaign side and you should directly involve your ESP/domain management team and check the above points.
Br,
Shubham