The GMAT project maintains several methods of communication:

Mailing Lists

All of our mailing lists are public, and all interested users are invited to subscribe:

Forums

The GMAT Forums are available for user discussion and support.

Blogs

We run two blogs:

Email

If you have a question that isn't appropriate for a public forum or list, you can contact the GMAT user support team directly at the following address:

GSFC-DL-595-GMAT-SUPPORT@mail.nasa.gov