[SOLVED] My Exchange server is now able to send email to httpd.apache.org domain after I added SPF TXT record to my DNS server

[Turritopsis Dohrnii Teo En Ming]

Good morning from Singapore,

Previously the mail server at httpd.apache.org domain rejected all of my emails.

I have solved the problem by adding the following Sender Policy Framework (SPF) text (TXT) record to my DNS server:

teo-en-ming.com.       IN     TXT         "v=spf1 mx -all"

Now my Exchange server is finally able to send emails to the httpd.apache.org domain.

Am I an excellent troubleshooter?

However, the mail server at freebsd.org is still rejecting my emails. Adding SPF TXT record did not solve the problem for this domain (freebsd.org). Perhaps I need to configure DKIM as well? I have no idea what is DKIM.

Please help me to troubleshoot email delivery failure for the freebsd.org domain.

Thank you very much.
    
 
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