Blocking attachments internally but exclude if one or more recipients are external

[Jbrines1969]

Hi All,

We are looking to block users sending attachments internally but if an internal and external email address is on the email we want to allow it.

Is this possible?

John.

[#2 · Accepted solution]

@Jbrines1969 

You can create a transport rule to block attachments and add an exception based upon your requirement.

[#3]

@surajbudhani I have tried this and it still block it unless you have to wait a certain amount of time for the rule to activate after changes?