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At work everyone has a UserID and an e-mail address. I can get the e-Mail of the UserID using Outlook. For example I have a UserID: myUser1. Using Outlook and putting into the To Section myUser1 inside and pressing ctrl + k, the according e-Mail address will be added. Now I want to implement that into my C# Form. I have hundreds of UserIDs and want to send a Mail to each of them.

So, how can I access the Contacts with known UserIDs(Outlook Initials)?

Marc LaFleur
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V.Hunon
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  • Did the existing related questions on this site (e.g. https://stackoverflow.com/q/4210703/87698 or https://stackoverflow.com/q/45032958/87698) help you? If no, why not? – Heinzi May 15 '19 at 08:51
  • I have checked them, but I don't know how to Access the UserID there? Like the ctrl + k shortcut. Which Method do I use? – V.Hunon May 15 '19 at 09:05
  • Are you using Outlook Object Model to talk to the locally installed copy of Outlook? Or are you using the Graph API? – Dmitry Streblechenko May 15 '19 at 16:41
  • I am using the outlook object. But I don't find the initials. I want to access the global address and from there I want to find the email address corresponding to their initials. – V.Hunon May 16 '19 at 02:06

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