We have several teams that are talking to themselves between the mailboxes configured for each of their group in service desk plus but this ends up creating e-mail loops. You get the acknowledgement request from one side and then the acknowledgement request from the other side and so on and so forth. So if I add their e-mail address to the Spam filter in the "Sender is" field, whenever a groups tries to talk to the other group will it still leave the e-mail come through since it has a ##requestis## in the subject line or since the sender is blocked it won't let it go through at all? If my suggestion doesn't work, how could I solve the issue?