Mail-in-a Box lets you create your own mail service in just a few simple steps. It's like creating your own gmail that you can control from the top down.
Mail-in-a Box is a cloud computing service that turns a new computer into a functioning mail server. You don't have to be a tech expert to set this up.
Mail-in-a Boxes include webmail, an IMAP/SMTP Server and desktop mail software. It also includes calendar and contacts synchronization.
The box includes standard mail functionality such as spam protection (spam filters and greylisting), email client auto-configuration, mail filter rules, and automated backups via Amazon S3 or other services.
When you choose to let it be your nameserver, the box will also automatically configure DNS records that are important for mail deliverability, security, and other factors, such as SPF, DKIM DMARC and MTA STS. DNSSEC (with DANE TLSA enabled) provides a higher degree of protection when enabled.