Error while using Thunderbird

I attemped to send a multiple email with an active url link.
There were 12 recipients, all were put in as BCC except for me.
I get the following error message:

"an error has occurred while sending mail the mail server responded [SUSPEND] mailbox is currently suspended.

This one is a new one for me, Thunderbird is the latest version 1.5.0.4
I can send the same email to any single recipient but not as a mass sending.

Anyone ???
Ramona perhaps ??

Daddad

 

Have you tried to send with another Mail Client, or just check if the address is listed exactly the same way in the listand individually.
I had an experience which could parallel yours. In first place, I have a list which failed to send to one address (not the same error as yours). However when I sent separately, to that address, there was no problem.
I, finally, decided to check the list, and, there was an error in the way I wrote the address in question.
As for the suspended message, my wife had two e-mail addresses, and she stopped using one of them. Our ISP sent a suspension notice after one year of non-use.
Is it possible that the address in the list is different from that which was used individually, and that the list's address was suspended?