I have been using Muse for a while and never had an issue with muse forms sending to various emails. But I have a client using Hotmail and my forms will not send to it. I have carried out the diagnostic check and have all 3 green ticks. I have set the MX entry to 'Remote' and I have included a code thats has been going around these forums since 2014 but the forms will still not sent. I am not receiving any error messages either. The form says its been submitted but nothing. Please help as I have wasted hours on this.
Sorry to hear about your concern.
Since you have tried almost everything possible online.
The next option I suggest you is reaching out to our Live chat/call support which will make it easy for detecting and fixing the issue.