Sending eForm Submissions to Multiple Recipients

the original question was simple: sending one eForm submission to multiple recipients did not work with a plain comma-separated &to value.

What to Remember

Legacy form plugins often have very specific expectations about address separators, hook processing, or custom mail handlers. If the obvious list syntax fails, the next step is to inspect how the mailer class actually receives recipients.

Safer Options

• Verify the exact separator syntax expected by the installed eForm version.
• Use a custom hook or mail handler when recipient logic becomes more complex.
• Log the generated recipient list in development before assuming transport failure.

This is one of those cases where a tiny implementation detail can break a business-critical notification flow, so it is worth testing explicitly after each form change.