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Characters That Are Not Supported for Object Names in Exchange 2007

 

Applies to: Exchange Server 2007 SP3, Exchange Server 2007 SP2, Exchange Server 2007 SP1, Exchange Server 2007

Topic Last Modified: 2008-10-31

This article describes characters that you cannot use in object names in Microsoft Exchange Server 2007.

When you create names for components or objects in Exchange 2007, the name cannot contain any of the unsupported characters. Also, if you try to import or connect to objects whose names contain characters that are not supported, you may receive an error message, or unexpected behavior may occur.

 

Exchange object Exchange scenario or component Unsupported characters Character limit

Organization name, site name

Running the Setup program or moving mailboxes

~ tilde

` grave accent

! exclamation point

@ at sign

# number sign

$ dollar sign

% percent

^ caret

& ampersand

* asterisk

() parentheses

_ underscore

+ plus sign

= equal sign

{} braces

[] brackets

| vertical bar

\ backslash

: colon

; semicolon

" quotation mark

' apostrophe

<> angle brackets

, comma

. period

? question mark

/ slash

64

Administrative group name

Running the Setup program

~ tilde

` grave accent

! exclamation point

@ at sign

# number sign

$ dollar sign

% percent

^ caret

& ampersand

* asterisk

() parentheses

_ underscore

+ plus sign

= equal sign

{} braces

[] brackets

| vertical bar

\ backslash

: colon

; semicolon

" quotation mark

' apostrophe

<> angle brackets

, comma

. period

? question mark

/ slash

64

Microsoft Exchange Server 5.5 computer name

Connection agreement or mail flow

. period

64

E-mail domain field

Simple Mail Transfer Protocol (SMTP) connector

~ tilde

` grave accent

! exclamation point

@ at sign

# number sign

$ dollar sign

% percent

^ caret

& ampersand

* asterisk

() parentheses

+ plus sign

= equal sign

{} braces

[] brackets

| vertical bar

\ backslash

: colon

; semicolon

" quotation mark

<> angle brackets

, comma

. period

? question mark

/ slash

64

Domain Name System (DNS) namespace

Running the Setup program

_ underscore

64

Smart host name

SMTP

Leading spaces or trailing spaces

64

Recipient policy SMTP address

Viewing public folder hierarchy

~ tilde

` grave accent

! exclamation point

@ at sign

# number sign

$ dollar sign

% percent

^ caret

& ampersand

* asterisk

() parentheses

+ plus sign

= equal sign

{} braces

[] brackets

| vertical bar

\ backslash

: colon

; semicolon

" quotation mark

<> angle brackets

, comma

. period

? question mark

/ slash

64

Recipient policy SMTP address host name

Mail flow

.. two periods

64

Host name of connector address space

Mail flow

.. two periods

64

Recipient name

SMTP

' apostrophe

" quotation mark

64

Exchange server host name

SMTP

_ underscore

64

Organization internal directory name

Directory

~ tilde

` grave accent

! exclamation point

@ at sign

# number sign

$ dollar sign

% percent

^ caret

& ampersand

* asterisk

() parentheses

_ underscore

+ plus sign

= equal sign

{} braces

[] brackets

| vertical bar

\ backslash

: colon

; semicolon

" quotation mark

' apostrophe

<> angle brackets

, comma

. period

? question mark

/ slash

64

Site internal directory name

Viewing the public folder hierarchy

? question mark

() parentheses

* asterisk

64

Mailbox name

Running the Setup program

/ slash

64

Public folder tree name

Viewing and creating the public folder

: colon

; semicolon

64

 
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