Office 365 meeting invite recipent error message: “delegate” would not receive my email.”

I am using Office 365 and I sent a meeting invite to a Comcast email userr (******  They received the meeting invite but when they hit accept they received the following message: “delegate” would not receive my email.”
Gloria BurtPresidentAsked:
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Adam BrownSr Solutions ArchitectCommented:
Comcast email doesn't have calendar processing capabilities. Those are handled by Outlook if the end user is using it. If the end user doesn't have Outlook and isn't using Android/iPhone, there is no way for the calendar invite to work, so there's nothing you can do. If the end user has Android/iPhone that they use with Comcast email, the problem is most likely caused by those devices integrating the email and calendar system with a Google/iCloud account, so when the user accepts a meeting request sent to Comcast, the reply triggered by the accept breaks because it's being sent by Google/iCloud account. If the user has outlook, the problem would be similar if they have an Exchange mailbox configured as well as Comcast email.

There really isn't a way to get it to work if the user has Android/iPhone, but if the user has Outlook, it should work if the Comcast email is the only email account in the Profile.

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Gloria BurtPresidentAuthor Commented:
Thanks for the quick response Adam Brown. Your answer makes sense. It was helpful.
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