Hi I have an SBS 08 server running exchange 2007, client machine is a 2008 TS running Citrix and office 2010, I also have a third server running MS dynamics CRM software integrated with outlook, not sure on the version there, I will update later. We have found through testing that when outlook is open in my profile and I try to send an email from my iPhone the emails make the sent sound but never arrive, or even end in the sent items. Can anyone help? Even where to start the diagnostics on this one...

Quote: “when outlook is open in my profile” Does it mean that the issue only happens when you launch the outlook client? Please disable all add-ins in the outlook client, and see if the issue can be reproduced “File”->”Options”->”Add-Ins” If the issue only happens when the CRM related add-ins are turned on, please use the “CRM” forum where the CRM experts can provide you more useful advice to know why the CRM will stop the mail flowPlease remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.