Notes Make sure to keep the email addresses for your contacts up-to-date in ChamberMaster which will follow-through into Constant Contact and end up in the “ChamberMaster Contacts List”. Updates to those contacts not in ChamberMaster may be done in Constant Contact on the “Standard Mailing List”. Clearing the “ChamberMaster Contacts List:” in Constant Contact each time will not eliminate the Opt Out list. Those that have opted out of your mailings (Do Not Mail) will be retained. Constant Contact keeps a list of these addresses internally. If a ChamberMaster contact manually tells you they would like to opt out of your mailings, you need to select the Do Not Mail selection in Constant Contact. Then when they are imported from ChamberMaster, Constant Contact will not allow the import since they are listed as Do Not Mail. If a ChamberMaster contact manually tells you they need their email address updated, you would need to change it in ChamberMaster so that it will be imported correctly next time. If a ChamberMaster contact manually tells you they need a new address added to the mailing list, either add their email address as a New Rep in ChamberMaster or add them as a contact in Constant Contact in the “Standard Mailing List”.