Alert agency when we mail a check

[carruthm]

When we send payment (via mail) we would like an additional letter sent to the preferred contact method (portal, email) stating that the check has been mailed so the agency knows right away that the check is on the way and can anticipate seeing it in the mail soon. 

[carruthm]

message to include:

"To Whom It May Concern:

Please know we have started processing a check for this request fee. A check will be sent out within the next couple of days to [import check address for the agency].

Thank you."

[mitchelljkotler]

Do we want the alert to be hidden?