14.7 Means of Notice   14.7.1 Any notice given under these Anti -Doping Rules shall  be deemed to have been duly given as follows : (a) if delivered personally  by hand against receipt, on the date of delivery;  (b) if sent by registered post with acknowledgment of receipt or equivalent, on the date mentioned on the receipt (in accordance with local  law); (c) if sent by email, on the day after the email is sent, provide d that ITTF must first ensure that the email address known for the recipient ( Athlete   ITTF  2021 Anti -Doping Rules  Page 47 of 61 or other Person ) is valid and current, such as by verifying that it is the email address directly provided by the Athlete  or other Person  (e.g.