Maximum Message Lengths

IM networks impose limits on the length of the messages you can send, the number of contacts you can add, and the length of your status messages. In addition to the limits that the network imposes, some clients are unable to display longer messages.

The practical limit to messages sent over IM is 1000 characters. Messages that exceed a network's defined length will be blocked, split, or truncated by different IM services. For this reason, we recommend keeping your messages under 1000 characters in order to ensure delivery across networks. This length includes any formatting you supply, not just user-visible characters.

For Twitter, messages cannot exceed 140 characters. The recipient's user name and sending method (@ or "D ") count toward this limit, as does the space separating the username and the message. Direct messages can be somewhat longer (160 characters), but some twitter clients may have issues displaying these. We recommend limiting messages to 140 characters minus the length of the sender's name plus three characters: MaxLength = 140 - (UserName + 3)

SMS has a limit of 160 characters in the United States. Some networks will accept longer messages and split them in two. Some networks also support SMS Long messages but IMified does not support these at this time.

Detailed information on the limitations of each network can be found in the article Table of Network Limits