Mail.com is an email service provider that can be contacted by phone or online. To contact them online, visit their website and click on the "Contact Us" link. You can then select the topic you would like to discuss and fill out the form with your question or comment. Alternatively, you can email them at support@mail.com. To contact them by phone, call 1-800-777-6311 Monday through Friday from 7:00 a.m.