Mail art disregards and circumvents the commercial art market. Any person with access to a mailbox can participate.
Participants are invited by (network) members to take part in collective projects or unjuried exhibitions in which entries are not selected or judged. Mail art generally operates within a spirit of “anything goes.
The mail art philosophy of openness and inclusion is exemplified by the “rules” included in invitations (calls) to postal projects: a mail art show has no jury, no entry fee, there is no censorship, and all works are exhibited. The original contributions are not to be returned and remain the property of the organizers, but a catalogue or documentation (online and/or in print) is sent free to all the participants in exchange for their works.