Lanlogic agressively opposes spam and limits any single email message to no more than 100 receipients.
If you are not sending spam and are sending to legitimate customers, then we recommend breaking the messages up into groups of less than 100 or using a list server application.
Created Monday, April 17, 2006 by Amy Thomatis http://www.lanlogic.net/support/kb/Knowledgebase/Why-am-I-having-trouble-sending-an-email-to-a-large-number-of-email-addresses