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Installing and configuring dkim-milter for use with postfix
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echto
Tux's lil' helper
Tux's lil' helper


Joined: 30 Jun 2002
Posts: 108

PostPosted: Sat Aug 30, 2008 11:25 pm    Post subject: Installing and configuring dkim-milter for use with postfix Reply with quote

Installing and configuring dkim-milter for use with Postfix.

Requirements.
1. postfix >=2.3
2. bind
3. dkim-milter

Install.
1. echo "mail-filter/dkim-milter" >> /etc/portage/package.unmask

2. echo "mail-filter/dkim-milter ~x86" >> /etc/portage/package.use

3. emerge mail-filter/dkim-milter

4. During the emerge, the group 'milter' will be added to /etc/group. Edit /etc/group and add postfix to the milter group.

5. Create your domain keys.

emerge --config mail-filter/dkim-milter

6. Edit the following items in /etc/mail/dkim-filter/dkim-filter.conf
Domain my-domain.com
Keyfile /etc/mail/dkim-filter/my-domain.com.private <- this private key was created during the above step.
Selector my-domain.com

7. Edit /etc/postfix/mail.cf and add the following.

smtpd_milters = unix:/var/run/dkim-filter/dkim-filter.sock
non_smtpd_milters = unix:/var/run/dkim-filter/dkim-filter.sock

8. Edit your dns record and add the TXT record displayed after executing step 5 above.

my-domain.com._domainkey IN TXT "v=DKIM1; g=*; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDPFbk/QnQy5ojAFZzngtCagVkIUZGSEx0z112e5GL5ZUakk1rlgOKsUKWcT54kC4cDcpyxp7ptHtnJWTdEd69s2aiOxVdSaoL2wnNVgnNqdSOThtJoBpAchFxhIYJ+wVJ8vpi99X/wm+wyOi39sP+d8BbNaQLHCq2d3sA45ziGjQIDAQAB" ; ----- DKIM my-domain.com for example.com

9. Restart bind

/etc/init.d/named restart

10. Add dkim-milter to the default profile

rc-update add dkim-milter default

10. Start dkim-milter

/etc/init.d/dkim-milter start

11. Restart postfix

/etc/init.d/postfix restart

Troubleshooting.

Q. When sending email I see the following error message in /var/log/mail.log

postfix/smtpd[27052]: warning: connect to Milter service unix:/var/run/dkim-filter/dkim-filter.sock: No such file or directory

A. Make sure postfix has been added to the milter group in /etc/group. See step 4 above.
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Casshan
n00b
n00b


Joined: 07 May 2004
Posts: 53

PostPosted: Mon Sep 01, 2008 9:15 am    Post subject: Reply with quote

Can this be done with multiple domains (configured in mysql)?
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