Officers email not working

Club # 28678702
Up until a few days ago our Officers email was working just fine.All officers All current officers. Any current member can send to this list.

On September 30th our secretary tried to send a message to the officers group and kept getting a "permanent fatal errors" message.  Our president reports that he tried to send an officers email the same day and got one message that it didn't go through and then when he tried again he didn't get any error message but the email was not received by anyone.  I then realized that the email that I sent to officers on September 29 also was not received by anyone.  I tried again last night (October 1st) and added my email on the to line.  I got the one sent to me personally but not the one for the officers.  None of the messages are in my spam.  I have tried copying and pasting the email address from FTH (above).  I have not received any error messages with the messages I sent and thought were received.  My email shows them all as sent messages.
Thank you for your assistance.
 

I can see at least 4 emails sent to the officers group and delivered to your mail service since just after 1am (UTC) on Oct 1 
4 of them are from you (the last two have the same subject) and one from Sophia.
Check your junk mail.  If not there, check with your provider

Your president is using the wrong club number - 286787  
I seem to recall your number was corrected - please let your members know the correct club number to use is 28678702 - and to check that if they get an error (the wrong number might be in your email "memory")