Most outreach campaigns fail because they blast cold lists and end up in spam...

https://echo-wiki.win/index.php/GlockApps_vs._Mail-Tester:_Which_One_Actually_Saves_Your_Outreach_from_the_Spam_Folder%3F

Most outreach campaigns fail because they blast cold lists and end up in spam filters. Building authority isn't about mass emails; it’s about high-intent targeting