An Organization cannot have a certain set of common email domains added to email_allowed_domains. The following email domains are not allowed:

• gmail
• aol
• yahoo
• icloud
• hotmail
• msn
• comcast
• live
• outlook
• att
• earthlink
• me
• mac
• sbcglobal
• verizon
• ig
• mail
• hey
• laposte
• wanadoo
• googlemail
• orange
• rediffmail
• uol
• bol
• free
• gmx
• yandex
• ymail
• libero