X.400 Message Handling System (X400)

This information is based on the Microsoft Mail for PC Networks gateway to X.400 mail systems. Certain fields, particularly  DDA,  and the length limitations may not apply in all X.400-based messaging systems. The custom recipient address is in the following format:

[X400:g=GivenName;s=Surname;o=Organization;ou=OrganizationalUnit; p=PRMD;a=ADMD;c=Country;]

Label

Description

Maximum Length

G=

Given name

16

I=

Initials

5

S=

Surname (required if G, I or Q are used)

40

Q=

Generation Qualifier

3

CN=

Common name

64

X.121=

X.121 address

15

N-ID=

User agent numeric identifier

32

T-TY=

Terminal type

3

T-ID=

Terminal identifier

24

O=

Organization

64

OU1=

Organizational unit #1

32

OU2=

Organizational unit #2

32

OU3=

Organizational unit #3

32

OU4=

Organizational unit #4

32

P=

Private Management Domain (PRMD)

16

A=

Administrative Management Domain (ADMD - required)

16

C=

Country (required)

2 or 3

DDA=

Domain Defined Attribute (format => dda:<type>=<value>;)

8, 128