E-Mail Use Case: E-Mail Forwards

This use case explores different uses for e-mail forwards. 1&1 Mail Basic users can configure e-mail forwarding addresses from the 1&1 Control Panel, and use them to forward e-mail from one address to another. [...]  

E-Mail Use Case: Mailing Lists

E-mail is one of the most effective ways to communicate with your customers. Read use cases for mailing lists on the 1&1 Cloud Server platform, and find suggestions and best practices for implementing a mailing list for your customer base. [...]  

Add a Spam Filter to a Plesk Server

Learn how to install the SpamAssassin spam filter on a 1&1 Cloud Server with Plesk. A spam filter is a necessary tool for any mail server. SpamAssassin is easy to install and manage with Plesk, and will filter out spam which is sent to email mailboxes hosted by your 1&1 Cloud Server. [...]  

Troubleshoot SMTP Error 550 "Relay Denied"

Learn how to resolve the common e-mail error SMTP 550 "Relay Denied." This error most often happens because of a failure to correctly authenticate with the SMTP server. Learn more about SMTP authentication methods, and how to resolve this error. [...]  

Read More