What is the quickest way to add a contact from an email I received?

If you’re using Mail on iCloud.com, open the email and select the sender’s name or email address at the top. Review the details in the window that appears, make any edits you need, and choose Done or Add Contact. [S1] That gives you a direct way to capture the sender. These steps are specific to iCloud.com Mail, though; they don’t establish the quickest route in other email apps.

Treat the details shown as something to review, not as a finished, verified profile. Check that the name is recognizable to you and that the email address matches the person you mean to save. If the window lets you edit the details, correct what you know before choosing Done or Add Contact. [S1] For example, if the message shows a company or team name instead of a person’s name, use a clearer label only if you know what it should be. Don’t guess at missing details.

The iCloud.com instructions don’t establish where the equivalent control is in another mail app, so don’t assume the same clicks apply. Look for that app’s option to add or save a sender, or create the entry in your address book instead. On iPhone, the Contacts app supports creating a contact by tapping Add, entering details, and tapping Done; you can then search by name, address, phone number, or other contact information. [S2] Search for the entry and check that its details are the ones you intended. Finding it does not confirm that the sender’s identity is genuine.

Use this capture-and-review routine:

1. Open the message and identify the sender address you want to keep.
2. In iCloud.com Mail, select the sender’s name or address at the top. [S1]
3. Review the contact details and correct only what you know.
4. Choose Done or Add Contact to save. [S1]
5. Search your contacts for the name or address and check the entry. On iPhone, Contacts supports searching by name, address, phone number, or other contact information. [S2]

If you don’t know the full name, use a neutral label you’ll recognize and leave uncertain details out. Update the name later when you have reliable information. The documented steps cover iCloud.com Mail and iPhone Contacts, not every email service, and they don’t verify who controls an address.