Are you seeing 'Invalid E-Mail Address' error message when you try to use two or more email addresses during an alarm?But, when you test each email address alone they do not issue an error and send the email.
It is the string formatting you are entering in the 'To' (recipients) space.
You do need to use a semi-colon (;) as the separator, but do not use any spaces.
For example: You want to send a WebDAQ alarm email to the following addresses abc@gmail.com and xyz@gmail.com
The correct format for the email 'To' box is: abc@gmail.com;xyz@gmail.com