free tools · spam checker
Will this email land in spam?
Paste a subject and body. You'll see what filters and readers tend to distrust, as you type. The check runs in your browser; your email is never sent anywhere.
Checked in your browser. Your email is never sent to Flaiir.
Results appear here as you type.
Content is the smaller half
Gmail and Outlook decide mostly on who you are, not what you wrote: whether your domain is authenticated (SPF, DKIM, DMARC), its reputation, and how people react to your mail.
So a clean result here is necessary, not sufficient. If your mail still lands in spam, check the domain next.
Fix it, then keep it fixed
Flaiir checks your whole domain for free, can write missing SPF and DMARC records at your DNS provider, and warms your mailbox while it watches where your mail lands.
Check my domain