Re: [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
On 14.08.18 07:50, Lyle Giese wrote: The reverse lookup for 118.189.211.120 does not match your HELO greeting this does not matter much. The HELO string exchange.teo-en-ming.com does exist, which is good. and does not match the A record for exchange.teo-en-ming.com. neither does this one. Get your upstream ISP to fix that. this is the first and biggest problem, the reverse lookup points to non-existing host name: 120.211.189.118.in-addr.arpa domain name pointer 120.211.189.118.static.m1net.com.sg. Host 120.211.189.118.static.m1net.com.sg. not found: 3(NXDOMAIN) The second is that the reverse and matching forward (points back to 118.189.211.120) should not be generic. Yes, ISP pointing the reverse to exchange.teo-en-ming.com would be best solution. Btw, the OP should get second nameserver in different netwotk: ;; AUTHORITY SECTION: teo-en-ming.com.112671 IN NS ns1.teo-en-ming.com. teo-en-ming.com.112671 IN NS ns2.teo-en-ming.com. ;; ADDITIONAL SECTION: ns1.teo-en-ming.com.3475IN A 118.189.211.120 ns2.teo-en-ming.com.3475IN A 118.189.211.120 On 8/13/2018 8:28 PM, Turritopsis Dohrnii Teo En Ming wrote: 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. -- Matus UHLAR - fantomas, uh...@fantomas.sk ; http://www.fantomas.sk/ Warning: I wish NOT to receive e-mail advertising to this address. Varovanie: na tuto adresu chcem NEDOSTAVAT akukolvek reklamnu postu. I'm not interested in your website anymore. If you need cookies, bake them yourself. ___ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
Re: [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
The reverse lookup for 118.189.211.120 does not match your HELO greeting and does not match the A record for exchange.teo-en-ming.com. Get your upstream ISP to fix that. Lyle Giese LCR Computer Services, Inc. On 8/13/2018 8:28 PM, Turritopsis Dohrnii Teo En Ming wrote: 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. ===BEGIN SIGNATURE=== Turritopsis Dohrnii Teo En Ming's Academic Qualifications as at 30 Oct 2017 [1] https://tdtemcerts.wordpress.com/ [2] http://tdtemcerts.blogspot.sg/ [3] https://www.scribd.com/user/270125049/Teo-En-Ming ===END SIGNATURE=== ___ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users ___ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
[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
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. ===BEGIN SIGNATURE=== Turritopsis Dohrnii Teo En Ming's Academic Qualifications as at 30 Oct 2017 [1] https://tdtemcerts.wordpress.com/ [2] http://tdtemcerts.blogspot.sg/ [3] https://www.scribd.com/user/270125049/Teo-En-Ming ===END SIGNATURE=== ___ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
