I sent my message to the list, but I don't think it worked. Should I send it again?
Do not send out a duplicate copy until you know what happened to your first message. And don't think that if you did (or did not) receive a copy, then that is what happened with everybody.
There are many things that could have happened. For instance, the message might have gotten stuck in your computer. Or it might have made it to your Internet Provider's computers, but mail-list.com is down. Or the message could have gotten to mail-list.com, and was rejected because you sent it from the wrong address. Or the message might have gone out to most everybody else, and your Internet provider's mail machine is currently down.
The best verification is to use the email archive command, and verify that your message is in the mail-list.com archives. If it is there, then it was sent to everybody on your list.
If not, please send a message to firstname.lastname@example.org requesting assistance.