plain.mail

 1"""
 2Email message and email sending related helper functions.
 3"""
 4
 5import socket
 6
 7from plain.utils.encoding import punycode
 8
 9
10# Cache the hostname, but do it lazily: socket.getfqdn() can take a couple of
11# seconds, which slows down the restart of the server.
12class CachedDnsName:
13    def __str__(self):
14        return self.get_fqdn()
15
16    def get_fqdn(self):
17        if not hasattr(self, "_fqdn"):
18            self._fqdn = punycode(socket.getfqdn())
19        return self._fqdn
20
21
22DNS_NAME = CachedDnsName()