Language for Certificate of Service
The two most common variations that we have seen are:
... a true and correct copy of the foregoing document was served upon the following attorney(s) of record in accordance with Rule 21a of the Texas Rules of Civil Procedure:or
... a true and correct copy of the foregoing document was delivered in accordance with Rule 21a of the Texas Rules of Civil Procedure via First Class U.S. Mail to the counsel of record listed below or by electronic delivery for those counsel available through the e-filing system.