How can I stop my tenant arguing in court that he hasn't received an s13 notice?

[Mandryka]

The notice has not expired....

[Mandryka]

Thank you!...

[Mandryka]

Notice sent by agent, ordinary post and by email.
No response from tenant.
Follow up reminders by email and text.
No response from tenant.

My question is, have I done enough to prevent my tenant being given the benefit of the doubt if he argues in court that he never...