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DNS Email Server not sending mail

Discussion in 'Domains, DNS, Email & SSL Certificates' started by Itworx4me, Mar 21, 2017.

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  1. Mar 21, 2017 #1
    Itworx4me

    Itworx4me Premium Member Premium Member

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    Hello,

    Can someone point me in the right direction on how to fix this? I am running google apps. My MX Record are correct. I can send and recieve just find using gmail. I use xenforo and I am trying to use the contact us link and the email doesn't get delivered. I thought a port might be blocked but it doesn't appear to be. I ran the following commands:
    Code:
    [02:28][root@hostname.domain.com ~]# netstat -an | grep 465 | grep -i listen
You have new mail in /var/spool/mail/root
[02:39][root@hostname.domain.com ~]# netstat -an | grep 587 | grep -i listen
[02:40][root@hostname.domain.com ~]# netstat -an | grep 25 | grep -i listen
tcp        0      0 127.0.0.1:25                0.0.0.0:*                   LISTEN
tcp        0      0 ::1:25                      :::*                        LISTEN
    Any help would be appreciated.

    Thanks,
    Itworx4me
     
  2. Mar 21, 2017 #2
    eva2000

    eva2000 Administrator Staff Member

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    Checked spam inbox ?

    Postfix is configured for sending out emails for all domains out of box. So you're all taken care of for any site hosted on your server for Postfix outgoing emails sent from the main host name so emails sent from @mainhost.domain.com. Which is why Getting Started Guide step 1 for proper main hostname DNS configuration is important for properly email delivery via Postfix and also mentioned at Email - Steps to ensure your site/server email doesn't end up in spam inboxes | Centmin Mod Community
     
  3. Mar 21, 2017 #3
    Itworx4me

    Itworx4me Premium Member Premium Member

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    This was the first item I checked. Noting there. I checked this file /usr/local/nginx/conf/conf.d/virtual.conf and it has been edited correctly. At a loss...lol
     
  4. Mar 21, 2017 #4
    eva2000

    eva2000 Administrator Staff Member

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  5. Mar 21, 2017 #5
    Itworx4me

    Itworx4me Premium Member Premium Member

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    How do I run opendkim.sh?
     
  6. Mar 21, 2017 #6
    eva2000

    eva2000 Administrator Staff Member

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    see https://community.centminmod.com/threads/automated-dkim-setup-with-opendkim.7011/

    To run addons/opendkim.sh type the following which uses git to update the local Centmin Mod code to latest (same as running centmin.sh menu option 23 submenu option 2) and then running addons/opendkim.sh:
    Code (Text):
    cd /usr/local/src/centminmod
git stash
git pull
cd addons
./opendkim.sh

    A log file is created by addons/opendkim.sh at /root/centminlogs/dkim_spf_dns_host.domain.com.txt. Contents has a copy of the DKIM TXT record as well as a generic SPF TXT record that you may also want to add a DNS TXT record at your DNS provider
     
  7. Mar 21, 2017 #7
    Itworx4me

    Itworx4me Premium Member Premium Member

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    Ok I have it sending emails now using this:
    Code:
    echo "dkim test today `date`" | mail -s "dkim test `date`" webmaster@domain.com
    but it goes straight to spam.

    SPF record:
    type:spf
    name: hostname.domain.com
    value: v=spf1 a mx ~all
    TTL Automatic

    I also setup a DKIM record too.
    type: txt
    name:default._domainkey.firegrilled.domain.com
    value:"v=DKIM1; k=rsa;" "p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCweLeci2ciDwYo0I4nzWlSPU1YIQH+t3a9+5C+tfXEA6888yuTZRjJAxsiwqO1sexxS3OoijcejvrzmQ8LHHbpVz3WYbNGDptn4+MWV7NNPrDiaqqbU7H58qz06OZOirBN07qEH7hTPkjRFTrN4LdtnI+cq8+mmy8dpaUvj3DSIwIDAQAB"
    TTL: Automatic

    It still won't send using the xenforo contact us form.

    Where do I go from here?

    Thanks,
    Itworx4me
     
    Last edited: Mar 21, 2017
  8. Mar 21, 2017 #8
    eva2000

    eva2000 Administrator Staff Member

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    Where is destination email hosted ? Gmail or Gsuite apps ? view email and view select 'Show Original' for email should give you something like

    upload_2017-3-21_15-56-28.png

    status of your SPF, DKIM and DMARC records - depending on DNS provider can take while to update DNS

    various tools outlined at https://community.centminmod.com/th...ver-email-doesnt-end-up-in-spam-inboxes.6999/ to test validity of your SPF, DKIM and DMARC records and also test if your server IP address is blacklisted or domains listed in email are blacklisted.
     
  9. Mar 21, 2017 #9
    Itworx4me

    Itworx4me Premium Member Premium Member

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    When I open this file its empty
    /etc/opendkim/keys/host.domain.com/default.txt
     
  10. Mar 21, 2017 #10
    Itworx4me

    Itworx4me Premium Member Premium Member

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    Code:
    Original Message

Message ID    <201703210537.v2L5bP8F023540@firegrilled.food-karts.com>
Created at:    Mon, Mar 20, 2017 at 10:37 PM (Delivered after 1 seconds)
From:    root <root@firegrilled.domain.com>
To:    webmaster@domain.com
Subject:    dkim test Tue Mar 21 05:37:25 UTC 2017
SPF:    NEUTRAL with IP 2602:ffc5:60:0:0:0:1:ef93 Learn more
DKIM:    PASS with domain firegrilled.domain.com Learn more
     
  11. Mar 21, 2017 #11
    eva2000

    eva2000 Administrator Staff Member

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    looks like didn't create it properly, try running clean command which will delete previous entry try and re-generate a new set of SPF and DKIM records
    Code (Text):
    cd /usr/local/src/centminmod
git stash
git pull
cd addons
./opendkim.sh clean

    You'll need to update SPF and DKIM TXT DNS records again with newly generated ones logged at /root/centminlogs/dkim_spf_dns_hostname.domain.com_210317-060106.txt which is date/timestamped for hostname.domain.com i.e. firegrilled.domain.com

    then check your /etc/opendkim/keys/host.domain.com/default.txt i.e. /etc/opendkim/keys/firegrilled.domain.com/default.txt should contain the RSA Private key for DKIM
     
  12. Mar 21, 2017 #12
    eva2000

    eva2000 Administrator Staff Member

    58,907
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    Nginx 1.31.x
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    make sure you have a reverse PTR record for your IPv6 address too and not just IPv4 ip address PTR
     
  13. Mar 21, 2017 #13
    Itworx4me

    Itworx4me Premium Member Premium Member

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  14. Mar 21, 2017 #14
    eva2000

    eva2000 Administrator Staff Member

    58,907
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    Ratings:
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    Local Time:
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    Nginx 1.31.x
    MariaDB 10.x/11.4+/12.3+
    seen to select DKIM from select dropdown menu first then input default._domainkey.firegrilled.domain.com
     
  15. Mar 21, 2017 #15
    Itworx4me

    Itworx4me Premium Member Premium Member

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    Ok I have got resoving spf records now. I also have a DKIM that resolves. Working on the PTR. Not sure how to set that one up yet...lol
    I tried this code again: echo "dkim test today `date`" | mail -s "dkim test `date`" webmaster@domain.com

    and now I get nothing. Not even in my spam folder...I am using google apps.

    Thanks for all your help George

    Itworx4me
     
  16. Mar 21, 2017 #16
    eva2000

    eva2000 Administrator Staff Member

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    PTR might need your web host intervention if your web hosts control panel doesn't have an option to setup PTR i.e. some solusvm VPS panels allow you add reverse PTR record yourself, others require your web host to do it for you
     
  17. Mar 22, 2017 #17
    Itworx4me

    Itworx4me Premium Member Premium Member

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    @eva2000 can you give me an example of what a PTR record would look like? My host hasn't got back to me on this issue. Might have to go it alone and figure it out.
    Thanks,
    Itworx4me
     
  18. Mar 22, 2017 #18
    eva2000

    eva2000 Administrator Staff Member

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    You can't do it yourself, it has to be done by your web host at their end for PTR if they don't offer an option in their server dashboard i.e. Vpses some use solusvm and allow you to set it up there
     
  19. Mar 22, 2017 #19
    Itworx4me

    Itworx4me Premium Member Premium Member

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    @eva2000 yes they do allow me to submit a record. I just don't know what to put there. I will show you what they have:

    test.png
    I just don't know what to put in the submit box?
     
  20. Mar 22, 2017 #20
    eva2000

    eva2000 Administrator Staff Member

    58,907
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    Nginx 1.31.x
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    for main ip, you put your main hostname which would be same as hostname on order form and same as one setup in step 1 of getting started guide

    same one that is displayed from output of the command
    Code (Text):
    hostname
     
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