[Email DLP] What are the restrictions on sending and receiving emails with groupware?

Questions

What are the restrictions when sending emails or for recipients?

Answers

It varies depending on the groupware you are using.
Please refer to the relevant page link.

In the case of Google Workspace

• Restrictions when receiving
  https://support.google.com/a/answer/1366776?hl=en-us(external link)
• Restrictions when sending
  https://support.google.com/a/answer/166852?hl=en-us(external link)

In the case of Microsoft 365

• Exchange Online limits
  https://technet.microsoft.com/en-us/library/exchange-online-limits.aspx(external link)