AutoDiscover is slow with the EWS Managed API

Yes, it can take a while. However, you may be able to speed things up. The best practice is to store the EWS web service URL set on the service object and use it next time instead of doing AutoDiscover again. SCP AutoDiscover should be avoided unless you need to use it. Also keep in…

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EWS and Federated Authentication

Many are joining enjoying the benefits of federated authentication with OWA. However, with EWS they find that they cannot use federated authentication. EWS can use Basic, NTLM and oAuth for authentication.  EWS does not support things like SAML tokens, etc.  There is also no developer support for changing authentication token credentials programmatically – such as…

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Testing sample which uses HttpWebRequest to do a POST to EWS

There are sometimes issues encountered which are difficult to resolve. There are many things which can cause issues which would call an EWS call to fail. Having well written with extensive error trapping and extensive logging is one approach. I wrote the sample below so that it could be used from any type .NET application…

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Best Practices: EWS Managed API coding for Exchange

There are issues which we seem to get a lot of cases on which are tied to the way a customer writes their code.  Often there are sections of code which were missing or that they otherwise should have implemented.  If your running into an issue or writing new code, then please read all points…

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EWSEditor 1.14 Released

It’s been a long time since there has been a release of EWSEditor. This latest version has many new features and fixes.  There are a few things I would like to highlight.: This version uses a recent build of the EWS Managed API based-upon the open source published code. There is a degree of implementation of oAuth. …

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