The topic concerns services that offer electronic mail functionality to users without requiring a telephone number for registration or account recovery. These services allow individuals to create and manage email accounts using alternative verification methods, such as secondary email addresses or security questions. An example would be a service that allows signup solely through a CAPTCHA and recovery email, avoiding SMS verification.
The absence of a phone number requirement can be beneficial for privacy-conscious users, those who prefer to minimize their digital footprint, or individuals who lack reliable phone access. Historically, telephone number requirements have been implemented to combat spam and account abuse. However, they also pose potential risks to anonymity and can exclude certain user groups. This approach recognizes the need to balance security with user privacy and accessibility.