It appears many Mail users are having authentication problems in which they are prompted for the username and password every time a message is sent (either manually ...

Email: It's been around for decades, and people are still confused about how it works--and for good reason. Setting up and troubleshooting an email account can be an irritating venture. Recently, we ...

Sending email messages from your iPhone uses a different server connection than receiving email. Because of this, your iPhone can sometimes receive email but be unable to send it. Settings for ...

The Simple Mail Transport Protocol, or SMTP, is a standard for how computers talk to each other to send email. If you're sending email using Microsoft Outlook, your computer may connect to your ...

Q: My iPad has suddenly stopped sending emails, and I've been getting the following error as a result: "Sender's address is not valid." In researching this error ...

Email started as a way to send a file between early internetworked computers with little checking about who was sending what. Despite the 60-odd years that have passed, that’s more or less what ...