If you receive the following error when trying to post an announcement, please review the explanation below.
"An Error occurred attempting to add a group announcement."
Typically, this error means that we're trying to send an announcement to someone that does not have a fully qualified email address. Sometimes, email addresses are not completed properly in the User Manager, and perhaps they're just the username, or they're just the @organization.com. In some instances, they've had their suffixes of .com/.org/.net left off entirely. If there is a user that does not follow the proper email format of NAME@ORGANIZATION.SUFFIX, the alert will fail.
Please take a look at your User Manager and make sure everyone has a valid email address. Having a blank email address is fine, it just needs to be the correct format if there is one that exists in that field. Completely removing any invalid emails, or completing them so they match the correct format will resolve this issue for you.