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.
Along with specialized uses for email, you should investigate how your users are emailing on a daily basis. Email has come a long way in 40 years and the way people use it has significantly evolved. That's important because it will impact the tools and features you need to look for in your hosted email provider's client software. Sure, Microsoft Outlook is still the most popular on-site email client, but a fast-increasing number of today's email users are opting for other email clients, such as Thunderbird, or all-web clients, such as Google's hugely popular Gmail. These clients can be very sophisticated and, depending on what your users are doing with email, they can have a big impact on your day-to-day business process.
I find it really annoying that people who used to check their email regularly, now leave large intervals between accessing their messages. This seems to be a social media thing where they’re all busy putting up their lunch pictures etc. etc. up for ‘everyone’ to see. Unfortunately this behaviour seems to be spilling over to the less conscientious in their work activities and they seem to be treating digital mail with contempt in some cases. Guess it’s back to paper mail and ‘snail’ delivery – not that that always gets the attention it deserves.