The maximum number of recipients of an e-mail is 500 (To, Cc and Bcc included)
When you want to send an email to more than 500 recipients, it is mandatory to create a mailing list.
- If all the recipients have an EPFL email address: you need to create a mailing lists associated with a group
- If some recipients have an external email address (non EPFL): you need to create a usual mailing list [email protected].