For those not familiar with bangs (exclamation points) in email addresses, there was a time when you had to include routing information in the address so your server would know how to find the destination server.
Each hop in the routing path was separated by a bang.
For those not familiar with bangs (exclamation points) in email addresses, there was a time when you had to include routing information in the address so your server would know how to find the destination server.
Each hop in the routing path was separated by a bang.