Unlike Gmail, Yahoo!, and other companies that offer the public secure free-to-use email accounts, Microsoft's email servers often summarily disappear our email that is sent to you instead of delivering it to your Inbox. They don't even place it in your junk/spam folder; it vanishes without a trace.
We have reached out to Microsoft, and pleaded with them to rectify this situation over the course of about six months, until we were finally informed by their representative that they remain resolutely reluctant to resolve this breach.
If you use your Microsoft-managed email address with PayPal and Venmo then your contribution will still be honored and appreciated, yet we would remain unable to communicate with you after receiving your contribution. We would also be unable to offer you a receipt for your contribution because Microsoft will have deleted it instead of placing it in your inbox.
If you don't have analternate email address then you are encouraged to create one.
To ensure that we are able to communicate with one another unhindered, and to ensure that you receive our confirmation of your contribution, we encourage you to provide with us your non-Microsoft email address.
Gratitude for your understanding and support.