My SMTP server work not corectly.. example: When i send a mail to email@example.com then the mail wil send it to test without @domain.tld I'm looking in local-host-names and the domains are not correct? the beginning: (test.nl = hostname) localhost test.nl localhost.test.nl localhost.nl www.domain1.nl www.domain2.nl etc.. etc.. domain1.nl domain2.nl I think the www. is not good? in sendmail is only domain without www. I will use my own smtp server what i doing wrong??