When you add new e-mail aliases, you need to make sure that your primary e-mail address is included and prefaced with with upper-case ‘SMTP:’. Your aliases, aka, secondary addresses should be prefaced with a lower-case ‘smtp:’. For example, I want my primary e-mail address to be [email protected]
In the proxyAddresses attribute use the following format:
SMTP:[email protected]
to make an alias [email protected] I will specify lower case “smtp:” like this: “smtp:[email protected]”
Note: If you are troubleshooting an email address assignment issue you mail want to look at the ‘mail’ attribute as well.