Running in-house email servers does provide more control and wider customization as well as tracking and compliance for small to midsize businesses (SMB). But they require specialized on-site IT staff as well as the need to manually manage and support both hardware and software. A third-party hosted email service matches many of the advantages of in-house email without the expensive initial investment. The ability to manage the number of users, access the latest security protocols, and enjoy ease of connectivity and deployment of hosted solutions makes it a viable and competitive option.
You can take it one step further and add the original email address (the domain one) as a “Send mail as” address under Mail Settings > Accounts and Import. This means that when you reply to an email you received at that address then it goes back from that address. This means that people feel more secure too, as it’s always odd to send an email and have it replied to from a different address – and sometimes somewhat suspicious.
Our aim is to keep our servers clean from malware, phishing, and other malicious activities posing threat to Internet users. It does not mean that we judge before knowing you, but today's reality is that we can not predict intentions of every user who signs up. In order to prevent misuse of our services we had to apply certain limitations to free hosting accounts. In turn our servers are never blacklisted so you can always expect your email message to reach it's recipient, and Internet users to reach your website.