Articles
How to View All Email Headers in Mac OS X Mail
macOS Mail and OS X Mail can show you all an email's header lines—which contain possibly...
How to Filter Mail Using a Custom Header in Mac OS X MailYou can teach OS X Mail use any header line for email filtering. The Rule of Sender and Subject...
Send a Message From a Different Account in Mac OS X MailIf you have more than one account (or more than one address per account) in Mac OS X Mail you can...
How to Block a Sender in Mac OS X MailBlocking a sender is easy in OS X Mail, and particularly so if you have a message from them at...