Too many recipients

[Irina]

Hello all,   We experienced a big problem with messages not being processed and being queued on the mail server due to spamassassin being failed on a message which had many recipients.   I found the message which caused the problem in the queue and saved it aside.  When looked at it I saw 765 recipients.  This is not the first time I noticed it.  We had the same problem 2 days ago, I found the message (that caused the problem) also had many recipients in the list (428 in To: field).  We had the same issue on August 11th, in that message we had 560 recipients in To: field.   We do not allow more than 50 recipients on the server.  But this message was to 1 recipient on our server.  The problem was with too many email addresses in 'To:' field.   I am not sure where to look.   Thank you for your help in advance.   Irina ====================