suggest that missing authentication (like SPF or DMARC) on your own sent mail can also affect your reputation, so keep your account security settings tight [7]. Final Thought
For advanced users, you can build your own anti-spam bot defense inside Gmail using Google Apps Script. Here’s a simple script that automatically deletes emails that match spam bot characteristics: spam bot gmail
: These bots deliver identity theft, malware, and "review spam". Google Help suggest that missing authentication (like SPF or DMARC)