Some emails will fall in Spam folder due to spam-trigger words detected or some other criteria.
If you are using MS Outlook, you may use the Junk Mail settings to disable the junk folder.
- In Home tab, click on Junk drop-down and select "Junk E-mail Options".
- In the Junk E-mail Options tab, check the "No Automatic Filtering. Mail from blocked senders is still moved to the Junk E-mail folder" option.
- Click the Blocked Senders tab.
- Select all email addresses in the email list box, and click the Remove button.
- Click OK button.
Now it won’t prevent any email messages sending to you, and all received email messages will be listed in the Inbox folder automatically.