With tutorial config, the postmaster with no domain is not a valid recipient

[arisudesu]

Describe the bug

With tutorial config, the postmaster with no domain is not a valid recipient.

I see that it was once described in the documentation as part of the config changes, but after several versions it is no longer in the config. As a result, it stopped working.

Perhaps it was lost in commit 81e6a3b? Missing block (below) is what makes it work again.

replace_rcpt static {
    entry postmaster postmaster@$(primary_domain)
}

Steps to reproduce

Trying xxx.xxx.xxx.xxx...
Connected to myhostname.dev.
Escape character is '^]'.

220 myhostname.dev ESMTP Service Ready

HELO myhostname.dev
250 2.0.0 Hello myhostname.dev

MAIL FROM: example@example.com
250 2.0.0 Roger, accepting mail from <example@example.com>

RCPT TO: postmaster
550 5.1.1 User doesn't exist (msg ID = 312f88ff)

^D

Configuration file

This with only difference in hostname.

Environment information

• maddy version: 0.4.4

[foxcpp]

Resolved in the referenced commit. Pending for 0.5.1.

[arisudesu]

Thank you for the fix and this useful software.