Anti-spam refers to techniques and tools designed to prevent unwanted and unsolicited messages, commonly known as spam, from reaching users' inboxes. These messages can include advertisements, scams, or malicious content that clutter email accounts and can pose security risks. To combat spam, various methods are employed, such as filtering software, which identifies and blocks spam emails based on specific criteria. Additionally, organizations often implement policies and practices to educate users about recognizing spam and protecting their personal information, ensuring a safer online experience for everyone.