In company maintenance we set up the email and smtp for sending out electronic invoicing per Paperless Office.  We have used the same smtp address information for a couple years.  Suddenly we get the following error. (see bottom of message).   I can send one electronic invoice at a time...wait for about a minute and send another.  That works but of course, it's a poor work around when we need to electronically send large batches of invoices.  I have called both the email provider and our Broadband provider and both point fingers at each other.  I don't know if I am going to get resolution soon.  I have tried another email (gmail) but it seems Gmail gives the following error.     530 5.7.0 Must issue a STARTTLS command first. 

Yikes!  Can anybody help with this strange sudden problem?  I am thinking of calling Sage Tech support, but I am not sure they have the skill to deal with this.   

Thanks much

Paula Park