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Is this from the client end?
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Your talking about exchange server correct? I have no idea when it comes to that
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Your talking about exchange server correct? I have no idea when it comes to that

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Many times that I try to send mail, windows security box keeps popping up in outlook 2013. &nbsp;It asks for credentials and I enter them and click remember credentials and it still comes up again. &nbsp;I went into credential manager in windows 7 and deleted everything and tried it all over and it still occurs. &nbsp;What is going on. &nbsp;This happens to other computer on our network also occasionally.<br />
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We use Exchange server. &nbsp;This never happened in 2010 outlook.
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Many times that I try to send mail, windows security box keeps popping up in outlook 2013.  It asks for credentials and I enter them and click remember credentials and it still comes up again.  I went into credential manager in windows 7 and deleted everything and tried it all over and it still occurs.  What is going on.  This happens to other computer on our network also occasionally.

We use Exchange server.  This never happened in 2010 outlook.

windows security box keeps popping up in outlook 2013

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.

Outlook

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 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.