Forum Discussion
Sharepoint online invites to external users going to spam
When adding external users (outside of our organization); the checkbox for send invitation is greyed out with a check in the checkbox. Therefore, an email invitation will occur. Sharepoint online d...
Unfortunately Microsoft gives spammers unfettered access to email as much spam as they'd like using the @sharepointonline.com address. As long as Microsoft takes a pro-spam stance on their network, spam detection systems will continue to see @sharepointonline.com exactly for what it is: an email domain that sends spam. Consider a different service.
Abuse of sharepointonline.com needs to be seen in the context of the amount of phishing we all see from breached tenancies in general. The specific design failure by Microsoft here, as we have also seen with Forms and several other products, is to use a generic domain which all tenants share rather than a named domain specific for each tenant as we have in SharePoint.