Mail Bombing

What is it?

What is it?

"Mail Bombing" refers to a malicious cyberattack or spamming technique in which an attacker inundates a targeted email inbox with many unsolicited or unwanted email messages, overwhelming the recipient's email server or client and disrupting regular email communication. Mail bombing attacks can range from nuisance-level spam to more sophisticated and damaging forms of cyber harassment or denial-of-service (DoS) attacks.

Key points to remember

Key points to remember

  • Volume-based Attack: Mail bombing involves sending massive emails to a targeted email address or domain within a short period, exceeding the recipient's email server or client's capacity to process and handle incoming messages.

  • Denial-of-Service (DoS): In severe cases, mail bombing attacks can result in a denial-of-service condition, rendering the recipient's email service inaccessible or unusable due to resource depletion or system overload caused by the flood of incoming emails.


  • Spamming and Harassment: Mail bombing attacks may be perpetrated for malicious purposes such as spamming, harassment, revenge, or extortion, aiming to disrupt regular email communication, overwhelm recipient inboxes, or cause inconvenience and distress to targeted individuals or organizations.


  • Mitigation Measures: To mitigate the impact of mail bombing attacks, email service providers and organizations implement spam filters, rate limiting, email throttling, and other security measures to detect and block suspicious or excessive email traffic, safeguarding email infrastructure and ensuring uninterrupted service.


  • Legal and Ethical Considerations: Mail bombing constitutes unauthorized access to computer systems, network abuse, and harassment, violating various laws and regulations governing cybercrime, spamming, and online harassment, with perpetrators subject to legal prosecution and penalties.

Example of Use

Example of Use

  1. Cyber Harassment: An individual perpetrates a mail bombing attack against a former colleague's email address, flooding their inbox with abusive or threatening messages as a form of harassment or retaliation.


  2. Political Activism: Hacktivist groups employ mail bombing tactics to disrupt the email communications of government agencies, corporations, or political organizations, protesting against policies or actions they oppose.

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