Beta Branch add addons/opendkim.sh for dkim setup for 123.09beta01

add addons/opendkim.sh for dkim setup for 123.09beta01

As outlined at Beta Branch - Automated DKIM setup with opendkim | Centmin Mod Community running addons/opendkim.sh will output the DNS entries for DKIM and SPF needed for your server's main hostname for emails sent via postfix MTA for your main hostname emails. You would need to manually update your main hostname's DNS TXT records.

For clarification, this addon/opendkim.sh is for emails sent such a cron emails, email alerts sent by the server itself including centmin.sh menu option 22's wordpress cron emails, account setup emails. All the emails sent where the from user is @mainhostname.domain.com that are for system related level not @domain.com level.

Code (Text):

addons/opendkim.sh
---------------------------------------------------------------------------
centos7.localdomain DKIM DNS Entry
default._domainkey.centos7.localdomain  IN      TXT     "v=DKIM1; k=rsa; "        "p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCsA2vO13aEozDDiFL8JHOi5lPVbx/gM0Vc/uFMnUbfK3EAdolx3newoXwNJTXojME1epmejvSuxq82Zh120FkZ7maqXI/NeFy3kyoeESWXjW+pEvY6ve2IBiTg/dCb+SEw5rM5YXd9jk1UJOpyvUXdnTDmcQuhLOGrmEu0hRe0TQIDAQAB"
------------------------------------------------------------
centos7.localdomain SPF DNS Entry
centos7.localdomain. 14400 IN TXT "v=spf1 a mx ~all"
---------------------------------------------------------------------------
---------------------------------------------------------------------------
DKIM & SPF TXT details saved at /root/centminlogs/dkim_spf_dns_centos7.localdomain_120416-141219.txt
---------------------------------------------------------------------------

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123.09beta01 branch

• Branch: GitHub - centminmod/centminmod at 123.09beta01
• Commit History: Commits · centminmod/centminmod · GitHub

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did you install Centmin Mod 123.09beta01 first ?

output for command

Code (Text):

ls -lahrt /root/centminlogs

 

There's the problem then that folder is required for all centmin.sh menu options and addon logging. I'll add a check for it and re-create it if it's missing

 

You must be using older version of addons/opendkim.sh latest as output like below

Code (Text):

smtpd_milters =
non_smtpd_milters =
milter_default_action = tempfail
milter_protocol = 6
smtpd_milters = inet:127.0.0.1:8891
non_smtpd_milters = $smtpd_milters
milter_default_action = accept
milter_protocol = 2
---------------------------------------------------------------------------
centos7.localdomain DKIM DNS Entry
default._domainkey.centos7.localdomain  IN      TXT     "v=DKIM1; k=rsa; "        "p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC+GvmpvrhrWzgtUZxUx4pmQwn49u9P/eR27JNR3AHHQMji3CcaAegIqJvrIqMips2/FkewaX80vTP6djgYFgx6hXdEp0iyIvAMuBddRM39bkjgLqJ4LDiXJQQNiTj2bUfpNDndyxXhfHNkX2sm1Vc+QA8rnGQAo0zkMj46rlPNaQIDAQAB"
------------------------------------------------------------
centos7.localdomain SPF DNS Entry
centos7.localdomain. 14400 IN TXT "v=spf1 a mx ~all"
---------------------------------------------------------------------------
---------------------------------------------------------------------------
DKIM & SPF TXT details saved at /root/centminlogs/dkim_spf_dns_centos7.localdomain_150416-222003.txt
---------------------------------------------------------------------------

---------------------------------------------------------------------------
centos7.localdomain DKIM DNS Entry
default._domainkey.centos7.localdomain  IN      TXT     "v=DKIM1; k=rsa; "        "p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDFAdxxshI+WJwjcq/Sm0P4AyiBXk3j0Ye5FfyJSg421DdQo2pVtHt+xf3e4lmHzxKxvQ2A61kX42MGqYGriLumXXl1ipUZIVARzjHprYowmv/eWeYapjaiTuULNlvotkOSVApRPVXrk/6dCXI4DyHwdXi8HCk8GyRAOIm5xPmp8wIDAQAB"
------------------------------------------------------------
centos7.localdomain SPF DNS Entry
centos7.localdomain. 14400 IN TXT "v=spf1 a mx ~all"
---------------------------------------------------------------------------
---------------------------------------------------------------------------
DKIM & SPF TXT details saved at /root/centminlogs/dkim_spf_dns_centos7.localdomain_150416-222003.txt
---------------------------------------------------------------------------

 

You can clean up old runs with command

Code (Text):

addons/opendkim.sh clean

then re-run it to re-generate a new set of dkim and spf records

just update 123.09beta01 code via centmin.sh menu option 23 submenu option 2 first to update addons/opendkim.sh first

 

hold off, i think i see a bug in current addons/opendkim.sh in the output might need to fix too

 

just updated addons/opendkim.sh with fix

clean command actually deletes old entry and regenerates a new dkim and spf dns set in one command so no need to re-run it again

Code (Text):

addons/opendkim.sh clean

 

depends on dns provider, so use whatever the dns provider formatting suggests

you can type that command to verify dkim is setup properly in SSH

 

that's normal see the example i posted, also does the same

see 1st post for main hostname only

that's because the forum has a from email address domain not from server's hostname

 

the addon was originally to ensure server sent emails i.e. from cronjobs and backup scripts got to their destination and not land in spam/junk inboxes

test output for main hostname centos7.localdomain

Code (Text):

addons/opendkim.sh
---------------------------------------------------------------------------
centos7.localdomain DKIM DNS Entry
default._domainkey.centos7.localdomain  IN      TXT     "v=DKIM1; k=rsa; "        "p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDXS1ZQRbZbKb7EGGZ708ESrcVWbzg9X/coz943JPCgIyvJtoBJFjd/I+ajHxicW5uqgFCtxOKhigOQJqCZDTPQwO2z9QJ1qI+NQfYqUEOhdG7Ui8ReipmIEoXt11WqdBPAc7yustrdhcghYn9dUdWfzpWgHo6f1WlLbs5UsVYmbQIDAQAB"
------------------------------------------------------------
centos7.localdomain SPF DNS Entry
centos7.localdomain. 14400 IN TXT "v=spf1 a mx ~all"
---------------------------------------------------------------------------
---------------------------------------------------------------------------
DKIM & SPF TXT details saved at /root/centminlogs/dkim_spf_dns_centos7.localdomain_130816-195944.txt
---------------------------------------------------------------------------

but i just updated addons/opendkim.sh to fix the duplicate output, it was in fact due to another hidden feature in that yes the addon can support other domains other than main hostname but it's untested so use without guarantees

test output for newdomain.com

Code (Text):

addons/opendkim.sh newdomain.com

---------------------------------------------------------------------------
newdomain.com DKIM DNS Entry
default._domainkey.newdomain.com        IN      TXT     "v=DKIM1; k=rsa; "        "p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDPhRN7Wt522LnbiQvKRDVBWpBJlT7hJJUsc5cf0KOBHJqI85oIavmE3Kl973UgxAWZizSmyFLjypFlkhAEH2Zc/Pec/X07BEgGmX5PHq8kOAxaeyguflYXSzE9FSxyUPaCgfGWjwr8UrJIIAOWxMn18xIh6fybk5sT3j0R3rfBiQIDAQAB"
------------------------------------------------------------
newdomain.com SPF DNS Entry
newdomain.com. 14400 IN TXT "v=spf1 a mx ~all"
---------------------------------------------------------------------------
---------------------------------------------------------------------------
DKIM & SPF TXT details saved at /root/centminlogs/dkim_spf_dns_newdomain.com_130816-200339.txt
---------------------------------------------------------------------------

location of the keys

Code (Text):

ls -lah /etc/opendkim/keys/          
total 0
drwxr-x--- 4 opendkim opendkim 52 Aug 13 20:03 .
drwxr-xr-x 3 root     opendkim 70 Aug 13 19:50 ..
drwxr-xr-x 2 opendkim opendkim 38 Aug 13 19:59 centos7.localdomain
drwxr-xr-x 2 opendkim opendkim 38 Aug 13 20:03 newdomain.com

note for domains and DKIM only useful for this addon if emails form domain web app script are sent from server postfix. If you use third party smtp you need to setup DKIM as per their instructions

 

This is for emails @mainhostname.domain.com only not for any site domain names @domain.com