Postal DNS Setup and Test Send Mail

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  • #839

    Hi Hasan

    Thanks for video about postal open source SMTP

    I try to install this on my labs, but i have problem with DNS Setup. I have configure MX and SPF on my dns server but when i check my record for SPF is still warning like this “An SPF record exists but it doesn’t include ”

    And then i try to send mail using telnet but i get this error like this “530 From/Sender name is not valid”

    Maybe you have experience like that? Thank you

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    I need to see your SPF, please paste it here to check


    Hi Hasan,


    Thanks for your response.

    I still using DNS internal to test this postal, so we can’t check from public, we attach the spf check using dig

    user1@smtp1:~$ dig txt domain.tld

    ; <<>> DiG 9.10.3-P4-Ubuntu <<>> txt domain.tld
    ;; global options: +cmd
    ;; Got answer:
    ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 40481
    ;; flags: qr aa rd ra ad; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1

    ; EDNS: version: 0, flags:; udp: 1280
    ;domain.tld. IN TXT

    domain.tld. 0 IN TXT “v=spf1 a mx include:spf:domain.tld ~all”

    ;; Query time: 0 msec
    ;; SERVER:
    ;; WHEN: Wed Jul 01 13:17:11 WIB 2020
    ;; MSG SIZE rcvd: 93


    please advise. Thankyou


    do you mean you are using a private server??

    if yes, this will now work, you need a public IP


    Yes, this is private server on our lab to testing.

    If we are on private server, can this server work?

    cause we have mail server on private network to test and our dns is redirect to dns internal.

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