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Thanks for the info on SMTP primary can be different. &nbsp;I will proceed as planned. &nbsp;Thanks
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user xyz recently married. &nbsp;If I understand correctly, I edit her email address, create alias with married name, set married name alias as primary which will make original name secondary. &nbsp;All mail whether old name or married name will arrive in the one mailbox. &nbsp;I edit Display Name to married name.<br />
When creating new email, replying, or forwarding it will show from married name and married name email address.<br />
I reconfigure outlook to login as new married name email address.<br />
EXAMPLE &nbsp;- current email address xzy@abc.com, add alias xyzmarried@abc.com, make xyzmarried@abc.com primary, configure outlook to logon using xyzmarried@abc.com<br />
She wants to keep old and new email addresses indefinitely and not have to pay for an additional license
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user xyz recently married.  If I understand correctly, I edit her email address, create alias with married name, set married name alias as primary which will make original name secondary.  All mail whether old name or married name will arrive in the one mailbox.  I edit Display Name to married name.
When creating new email, replying, or forwarding it will show from married name and married name email address.
I reconfigure outlook to login as new married name email address.
EXAMPLE  - current email address xzy@abc.com, add alias xyzmarried@abc.com, make xyzmarried@abc.com primary, configure outlook to logon using xyzmarried@abc.com
She wants to keep old and new email addresses indefinitely and not have to pay for an additional license

Thanks for the info on SMTP primary can be different.  I will proceed as planned.  Thanks

office 365 exchange online email address alias

Office 365 is a group of software plus services subscriptions that provides productivity software and related services to its subscribers. Office 365 allows the use of Microsoft Office apps on Windows and OS X, provides storage space on Microsoft's cloud storage service OneDrive, and grants 60 Skype minutes per month. Office 365 includes e-mail and social networking services through hosted versions of Exchange Server, Skype for Business Server, SharePoint and Office Online, integration with Yammer, as well as access to the Office software. All of Office 365's components can be managed and configured through an online portal; users can be added manually, imported from a CSV file, or Office 365 can be set up for single sign-on with a local Active Directory using Active Directory Federation Services.

Microsoft 365

Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.