Further to my earlier comments about working with a remote group who are trying to set up and acquire Office 365 for free (on a charitable basis), we have worked through the email settings that are required to get mail from their domain redirected to Office 365 Outlook today. The next step is the group need to apply for the Applications by registering their charitable status with the provider. More on this once I hear back from them. If they get past this last hurdle then they will have access to the lastest MicroSoft applications at zero cost.
I have also located a Microsoft article on how to get Office 365 for free. You can find it here: https://www.microsoft.com/en-us/nonprofits/office-365 to apply to try it for free go to the bottom of the page (on the website link) and start there.
If I am looking after your email and/or domain name I can help change the server settings so that MS Office 365 will work for your organisation. All you need is someone at your end to make the changes to your systems and lead the migration.
Also check out TT Exchange; I put a brief article together on this organisation.