Postfix
| Field | Ind | Field content |
| leader | -----cz a22--------4500 | |
| 1 | ph290649 | |
| 3 | CZ PrNK | |
| 5 | 20180405041810.6 | |
| 8 | 050604|n|anznnbabn n a|a | |
| 40 | ## | $a ABA001 $b cze $d ABA001 |
| 72 | #7 | $a 004.4/.6 $x Programování. Software $2 Konspekt $9 23 |
| 80 | $a 004.42Postfix $2 MRF_2003 | |
| 150 | $a Postfix $7 ph290649 | |
| 550 | $w h $a Postfix 2.1 $7 ph290648 | |
| 550 | $w g $a poštovní software $7 ph290650 | |
| 550 | $w g $a serverový software $7 ph125490 | |
| 750 | $a Postfix $2 eczenas | |
| 906 | $a wp20050606 $b miry | |
| 906 | $a wz20060314 $b miry | |
| 950 | 0 | $a název produktu |
| 998 | $a 000290649 |