If exchange account email push stopped working completely and non-exchange email account continued to push. Also exchange account only update itself when you open the mailbox. Fill all settings and make sure you will see tick marks.
You can simply request them to update their contact of yours by sending a message on Whatsapp or phone messege. (Indicate your name)." Or"Hi, you may reach me at this number.Normalization rules are contained in the optional Company_Phone_Number_Normalization_file located in the output location or in the generic rules built into Address Book Server.Refer to the documentation for a description of the built-in generic normalization rules. After the i Phone reboots, don’t add any Wi Fi network, until you setup your exchange email account again. Once you have verified that the exchange account is working, then you can add tour Wi Fi network back.In order to get the best experience from Whats App, we strongly recommend you allow Whats App access to your phone's contacts.