4.1
4.2
4.3
Nulafdruk _____________________________________________17
5 Frankeren ___________________________________________________19
5.1
5.1.1
5.1.2
5.1.3
5.1.4
5.2
5.2.1
Portowaarde ___________________________________________23
5.2.2
5.2.3
5.2.4
5.2.5
Datum _______________________________________________29
5.2.6
5.3
5.4
5.4.1
5.4.2
5.4.3
5.5
6.1
6.2
6.3
6.4
6.5
Inhoudsopgave
3