[Zope] MailHost Question (multiple To addresses) from Python Script

[complaw@hal-pc.org]

Does anyone know how use the MailHost object to send copies of the same message
to multiple users from a python script?

Using a semi-colon to separate users (e.g., "user1@host.com; user2@host.com") 
doesn't work, at least when using MS Exchange.

Any hints would be appreciated.

Best wishes everyone,

Ron