[ms office - 2010] Adding a new contact - e-mail address vanishes when clicking away from e-mail field

[Rawns]

I have a really odd issue that I'm scratching my head over. When a user adds a new contact into their Outlook client, they add the contacts full name and then click into the e-mail field and add in an e-mail address. When either tabbing or clicking into the Display As field, the e-mail address just vanishes all together. I've done some digging on the issue and a few results suggest that the Auto-Complete list is corrupt so I've cleared it out however it's made no difference. I can't find any other solutions to this issue so wondered if anyone here has come across this before? Edited April 26, 2018 by Rawns

[Cache]

Does it have an odd domain suffix?

 

I had one email address which ended with .eu which no amount of trying could I get to save in Outlook. Ended up adding it through OWA.

[Rawns]

Nope, it's a standard .com e-mail address - nothing unusual about it.