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I believe that you can create a distribution group with the address ITAdmin@mydomain.com and then give a licensed user the send as permission to that distro group. &nbsp;you will still have to authenticate as a licensed user but the email will have a different address.
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you can also set up an internal SMTP relay. &nbsp;see section 3.<br />
<a href="https://support.office.com/en-us/article/how-to-set-up-a-multifunction-device-or-application-to-send-email-using-office-365-69f58e99-c550-4274-ad18-c805d654b4c4" rel="ugc">https://support.office.com/en-us/article/how-to-set-up-a-multifunction-device-or-application-to-send-email-using-office-365-69f58e99-c550-4274-ad18-c805d654b4c4</a>
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ClintonK

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you dont need a separate mailbox or DL for that. you can follow the suggestion that @Madison suggested.
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Give some thought to the account you use. You do not want to be using a global admin account to send email from a MFP.
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I have Office365 for a number of Exchange user accounts and each of these are office staff who have a mailbox and access their email using Outlook.<br />
I would like to have a separate send only email account so that I can configure it to send out alerts from the Dell iDRAC system and also from my Backup software. &nbsp;<br />
Is it necessary for me to purchase another licence for this use or is there a way to configure an email address (e.g. ITAdmin@mydomain.com) which is only used to send notifications?<br />
Seems a bit of a waste to have to purchase another licence just to send application notifications.
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I have Office365 for a number of Exchange user accounts and each of these are office staff who have a mailbox and access their email using Outlook.
I would like to have a separate send only email account so that I can configure it to send out alerts from the Dell iDRAC system and also from my Backup software.  
Is it necessary for me to purchase another licence for this use or is there a way to configure an email address (e.g. ITAdmin@mydomain.com) which is only used to send notifications?
Seems a bit of a waste to have to purchase another licence just to send application notifications.

Can I configure a no-cost Office365 email address to send app notifications?

Microsoft Office is an integrated suite of applications that includes Outlook, Word, Excel, Access, PowerPoint, Visio and InfoPath, along with a number of tools to assist in making the individual components work together. Coding within and between the projects is done in Visual Basic for Applications, known as VBA.

Microsoft Office

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.

Exchange

Microsoft Outlook is a personal information manager from Microsoft, available as a part of the Microsoft Office suite. Although often used mainly as an email application, it also includes a calendar, task manager, contact manager, note-taker, journal, and web browser.