Some members of the SquirrelMail Project Team provide paid support if you need expedited or special attention. Please show your appreciation for Open Source Software by using their services. When contacting a developer directly, be sure to specify that you are seeking paid help, as otherwise you will be referred back to the free public support avenues.
[Paul Lesniewski] <email@example.com> Private consultancy services for full email system design and integration, as well as custom SquirrelMail plugin development, SquirrelMail customizations, and general SquirrelMail support. Signup page and user account management implementations are available. 日本のお客様にもご対応します。 (Japanese clients are welcome.)