Which section of an email contains the sender's contact information?

The section of an email that typically contains the sender's contact information is the signature. An email signature is a block of text that is automatically appended at the end of an email message, often including details such as the sender's name, title, company name, phone number, email address, and sometimes even additional elements like social media links or website URLs. This allows recipients to easily access the sender's contact information without having to locate it in the main content of the email.

While the header of an email provides essential routing information, such as the sender's email address and other metadata, it is not placed in a format that is user-friendly or easily referenced by recipients, making it less effective for direct contact purposes. The subject line is designed to summarize the content of the email, and the body contains the main message but generally does not include contact details unless manually added. Thus, the signature serves the specific purpose of providing comprehensive contact information in a consistent and professional manner.