Table of Network Limits
Below is the information that IMified has on the maximum lengths of messages, status messages, and contact lists across all networks we support.
AIM (AOL)
Message length: 1024 characters
Contact list: 1000 users
Status message: untested
Yahoo
Message length: 1784 characters
Contact list: 1000 users. Some reports of issues adding more than
200 contacts, but appears to be a limitation of a specific Yahoo
client and not the protocol
Status messages: 40 characters. Longer messages may be set, but
most clients only display 40.
Live Messenger (MSN)
Message length: varies by client version. Generally around
1500
Contact list: 1000 users on a contact list, 1500 that can have a
user on their list
Status messages: untested
Jabber
Message length: No maximum length in the protocol. Servers may
define their own lengths and some clients may have trouble with
very long messages.
Contact list: No limits defined in protocol.
Status message: no defined limits. Clients may have practical
limits on the display of long messages.
Google Talk
Message Length: untested
Contact list: Unpublished, but reports show issues with seeing
presence and adding new contacts at 600-700 users
Status message: untested
Message length: 140 characters for regular messages, 160 chars
for direct messages. Recipient username counts toward limit.
Contact list: Maximum of 2000 following, unlimited followers
Status message: 140 characters
Skype
Message length: no known limit
Contact list: no known limit
Status message: no known limit
SMS
Message length: 160 chars
Contact list: n/a
Status message: n/a