aamir.pc6
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aamir.pc6

Configure DKIM with Ubuntu

July 6, 2014 6.9k views

im trying to configure / set up DKIM in ubuntu to be used with sendmail or specifically PHP mail function..
found some articles on hot to configure it for postfix, ...
but didnt get anything for sendmail with ubuntu..
im using ubuntu with LAMP install..
step- step guide will be appreciated or pls point to some articles...[not familiar with linux cmds]

3 Answers
  • i have executed this command
    root@ubuntu:/etc/opendkim/keys# opendkim-genkey -D /etc/opendkim/keys/example.com -d example.com -s default
    how to get the public key and private key after this step ??

hi
in this particular line in /etc/opendkim.conf
Socket inet:8891@localhost
do we need to change to 1234@localhost to work with digital oceon ??
and thanks for the link
i have executed this command
root@ubuntu:/etc/opendkim/keys# opendkim-genkey -D /etc/opendkim/keys/example.com -d example.com -s default
how to get the public key and private key after this step ??

am i missing something ??

  • Both keys should be created in that directory.

    # opendkim-genkey -D /etc/opendkim/keys/example.com -d example.com -s default
    # ls
    default.private  default.txt
    # cat default.txt 
    default._domainkey  IN  TXT ( "v=DKIM1; k=rsa; "
          "p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCxh/I8WtYHR3yUEPFoPbJQGhjjiq3zSZJCvd7hfkFdSBcGCnIKDw6Yv75ej19xSlCxanz56oA3dmRgARh1Y639EWIADx0iFIZQMNuif2ZFCgougXt95xmbh+BwjQDm+l9Loz1/qv+KUrjIXar5p4qBoeJ6JYrugWcNbTAg+3EleQIDAQAB" )  ; ----- DKIM key default for example.com
    
  • for some reason thats not happening over here..
    but i executed this command
    opendkim-genkey -t -s mail -d example.com
    this generated mail.private and mail.txt
    inserted mail.txt to my dns and copied mail.private to /etc/mail/dkim.key
    inserted this to /etc/mail/sendmail.mc
    INPUT_MAIL_FILTER(opendkim', S=inet:8891@localhost')
    executed this command
    # sendmailconfig; service sendmail restart; service opendkim start
    but still if i send mails dkim keys are not included ?
    Whats wrong ??

    Thanks
    Aamir

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