I have problems with the mailing list, please help me!

[rafael ernesto alfaro sandoval]

I can't recieve the messages posted to the list, and I have this
configuration:

Mail delivery ........................................  Enabled
Set Digest Mode ........................................Off
Get MIME or Plain Text Digests?.........................plain text
Receive your own posts to the list?....................   yes
Receive acknowledgement mail when you send mail to the list? .... yes
Get password reminder email for this list?...................yes
Conceal yourself from subscriber list?.......................yes
Do you want to receive messages that do not match any topic filter?
....yes
Avoid duplicate copies of messages?......no

Please help me!

Thanks in advance!