# Mail subdirs are owned by root: chown -R jebba:jebba /home/jebba/Maildir chown -R mailarchive:mailarchive /home/mailarchive/Maildir # opendkim needed to be restarted to listen. # It was running, but not listening on port 12301 # DMARC Instead of "p=reject", set to "p=none" until confirmed working. Need to restart opendmarc after install, or it doesn't listen: netstat -pant | grep opendmarc | grep LISTEN # DKIM Jul 4 12:38:50 mx1 opendkim[23469]: can't load key from /etc/opendkim/forksand.com.dkim.private: Permission denied XXX chown opendkim /etc/opendkim/forksand.com.dkim.private service opendkim restart XXX Install haveged for entropy/random number generation, or process can hang. # Set up DNS records: TXT @ "v=spf1 include:_spf.protonmail.ch mx ip4:174.128.244.233 ip4:174.128.244.234 -all" TXT _dmarc "v=DMARC1; p=none; rua=mailto:postmaster@forksand.com"" TXT forksand.com.dkim._domainkey ( "v=DKIM1; h=sha256; k=rsa; " "p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAz7CTEIuPHdWaCZbNBPxlw2LEU3trXqrYEpX/LjJhlRujvDpaz3C5/ItFcbMUWkrg6oXq4s2yS2moRRqAbloHGD1nrnucb2pKX2A3o8IlGKMG1cPdtGvb6vXpE7Yyq2wFkwIk2mMw5SmGOZ2KSju9R2VQ+i5X5HunGrfATYX/StABM1fAigNiltOKXntm/F7OVyPBu2c/mGk86e" "s99FNUdLNR6oPt5OFWXjUP3j/3HcDLDSd9yoKLhLRjOJpBugqAFx0B3g+X6ev4xHEe6B76o57RqK2eEe2vZJay/Me1Z/UHTvgohHuO/aYcJCXxDOxx/D07mztH2maKlE678OgKFwIDAQAB" ) TXT protonmail._domainkey "v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCpLi9apcLrxwSXGFFD0n/pgc5iOwfCsTELz+JICz+j2iAwuExU3uvz6P83FTHaJSemT3YGPxbW3li6AJHYUjttagJom3CffpDcT0fGfhZ/zwIt+aTIfUYWJxt1wf6kAUdHVYtopKObx0fdy16IVUIToc/4D5QaT8vARrEr+P/ARwIDAQAB" MX @ 900 10 mx1.forksand.com. MX @ 900 50 mail.protonmail.ch. # Firewall XXX iptables: The main 25, 587, 993, etc ports were all locked out... # Postfix main.cf changes: smtpd_helo_restrictions = permit_mynetworks smtpd_helo_required = no Remove: smtpd_client_restrictions = reject_rbl_client dnsbl.sorbs.net virtual_alias_domains = forksand.com, oca.forksand.com virtual_alias_maps = hash:/etc/postfix/virtual Add: local_recipient_maps = luser_relay = jebba mynetworks = 127.0.0.0/8, 10.22.22.0/24, 174.128.244.192/26 virtual domains... postmap /etc/postfix/domains in master.cf, change first line to JUST: smtp inet n - y - - smtpd Remove: -o receive_override_options=no_address_mappings #### apt install mailutils