Hey everyone, I'm using a ubuntu 14.04 LTS server with Apache, Postfix and ISPConfig 3. I did the "Perfect Server" setup to configure my server. Postfix is configured to support multiple domains. Let's say I have 2 Domains: My main domain is example.net and my virtual-domain is mydomain.com My problem is, that whenever I write an email from a virtual-domain (e.g. mydomain.com) to a gmail-address, it bounces with the following message: Code: 550-5.7.1 Our system has 550-5.7.1 detected that this message is likely unsolicited mail. To reduce the 550-5.7.1 amount of spam sent to Gmail, this message has been blocked. Please 550-5.7.1 visit 550 5.7.1 https://support.google.com/mail/answer/188131 for more information. This is my main.cf Code: masquerade_domains = $mydomain masquerade_exceptions = root, mailer-daemon smtpd_relay_restrictions = permit_mynetworks permit_sasl_authenticated defer_unauth_destination #myhostname = mail.example.net alias_maps = hash:/etc/aliases, hash:/var/lib/mailman/data/aliases alias_database = hash:/etc/aliases, hash:/var/lib/mailman/data/aliases #myorigin = /etc/mailname mydestination = $myhostname, localhost.$mydomain, mail.example.net, localhost, localhost.localdomain mydomain = example.net myhostname = mail.$mydomain mynetworks_style = host myorigin = $mydomain #smpt_banner = $myhostname ESMTP $mail_name relayhost = mynetworks = 127.0.0.0/8 [::1]/128 mailbox_command = procmail -a "$EXTENSION" mailbox_size_limit = 0 recipient_delimiter = + inet_interfaces = all html_directory = /usr/share/doc/postfix/html virtual_alias_domains = virtual_alias_maps = hash:/var/lib/mailman/data/virtual-mailman, proxy:mysql:/etc/postfix/mysql-virtual_forwardings.cf, proxy:mysql:/etc/postfix/mysql-virtual_email2email.cf virtual_mailbox_domains = proxy:mysql:/etc/postfix/mysql-virtual_domains.cf virtual_mailbox_maps = proxy:mysql:/etc/postfix/mysql-virtual_mailboxes.cf virtual_mailbox_base = /var/vmail virtual_uid_maps = static:5000 virtual_gid_maps = static:5000 inet_protocols = all smtpd_sasl_auth_enable = yes broken_sasl_auth_clients = yes smtpd_sasl_authenticated_header = yes The strange thing is: when I add the virtual-domain (mydomain.com) to "mydestination", the mail gets delivered to gmail, but I can't receive any new mail on that domain. If I remove that domain again, my mails get rejected again. What am I doing wrong here? Thanks, Locutus
First, virtual domains shall not be listed in mydestination, so please don't add it there as this makes the domain a system domain. To your problem: 1) Check the reverse dns record of your server IP and ensure that it matches the server hostname and that the server hostname is a subdomain and the same subdomain is used for myhostname and myorgin in postfix main.cf. 2) Add a spf record for your domain. 3) Add Dkim: http://blog.schaal-24.de/ispconfig/ispconfig-dkim-patch/?lang=en
Could you explain a bit more about DKIM? What is that and why do I need it. I don't have an own DNS Server configured. Is DKIM still usefull for me?
Thanks, Gmail works now. But Outlook.com still makes some trouble: Code: 550 5.7.1 Service unavailable; Client host [MY_IP_ADDRESS] blocked using FBLW15; To request removal from this list please forward this message to [email protected] (in reply to RCPT TO command)) do you have any idea on that as well?
forward this message to [email protected] You can also join the Smart Network Data Service from Microsoft
