We have changed our companies domain name and I am done on our Exchange( 0ffice365 cloud) so that our users can get emails with the new domain name. In fact, all outgoing messages is going out using the new smtp address with the new domain name. ( i.e First-initialLastname@newdomain.com) . We have about 70 users.
What would be the best way for our users or our company to notify our clients/partners so that they update their contact info? I guess am not sure what the best approach would be technically and logistically?