On 15/10/20 8:20 am, Nick wrote:
Is it possible to have more than one "+" sign in the email address, what does Postfix do when it sees that, does it stop at the first one and considers everything that follow a sub-addres?
Yes. Postfix uses the strcspn() C function to do the split which explicitly looks for the first matching character in the string, so the rest is considered to be the extension and is not looked at further.
I'm not sure if this is documented anywhere and if it isn't then it means that this could be subject to change in future versions.
Peter
