Fli
09-10-2013, 10:02 AM
Hi, please how can i setup SMTP server whose emails wont be rejected by AOL, Gmail, Yahoo etc?
People say its imporatant to have reverse DNS
AOL does require that all connecting Mail Transfer Agents have established reverse DNS, regardless of whether it matches the domain.
Reverse DNS must be in the form of a fully-qualified domain name. Reverse DNS containing in-addr.arpa are not acceptable, as these are merely placeholders for a valid PTR record. Reverse DNS consisting of IP addresses are also not acceptable, as they do not correctly establish the relationship between domain and IP address.
[root@vps home]# dig -x 37.11.11.11
; <<>> DiG 9.3.6-P1-RedHat-9.3.6-20.P1.el5_8.6 <<>> -x 37.59.228.66
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 28206
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0
;; QUESTION SECTION:
;66.11.11.11.in-addr.arpa. IN PTR
;; AUTHORITY SECTION:
11.11.11.in-addr.arpa. 67 IN SOA dns100.ovh.net. tech.ovh.net. 2013083000 43200 4320 2419200 86400
;; Query time: 10 msec
;; SERVER: 8.8.8.8#53(8.8.8.8)
;; WHEN: Tue Sep 10 05:59:05 2013
;; MSG SIZE rcvd: 98
[root@vps home]# telnet 37.11.11.11 25
Trying 37.11.11.11...
Connected to 37.11.1.11.
Escape character is '^]'.
220 mydomain.tk - Welcome to Qmail ESMTP
-------------------------------
Something for reading
Why is email from my server marked as Spam?
http://www.serverintellect.com/support/email/avoid-spam.aspx
Email server recipe for avoiding spam filters
http://blog.nahurst.com/email-server-recipe-for-avoiding-spam-filters
How can I prevent my mail from being classified as spam?
http://webmasters.stackexchange.com/questions/3728/how-can-i-prevent-my-mail-from-being-classified-as-spam
rDNS setup to prevent emails appearing as spam / phishing messages
http://serverfault.com/questions/516962/rdns-setup-to-prevent-emails-appearing-as-spam-phishing-messages
People say its imporatant to have reverse DNS
AOL does require that all connecting Mail Transfer Agents have established reverse DNS, regardless of whether it matches the domain.
Reverse DNS must be in the form of a fully-qualified domain name. Reverse DNS containing in-addr.arpa are not acceptable, as these are merely placeholders for a valid PTR record. Reverse DNS consisting of IP addresses are also not acceptable, as they do not correctly establish the relationship between domain and IP address.
[root@vps home]# dig -x 37.11.11.11
; <<>> DiG 9.3.6-P1-RedHat-9.3.6-20.P1.el5_8.6 <<>> -x 37.59.228.66
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 28206
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0
;; QUESTION SECTION:
;66.11.11.11.in-addr.arpa. IN PTR
;; AUTHORITY SECTION:
11.11.11.in-addr.arpa. 67 IN SOA dns100.ovh.net. tech.ovh.net. 2013083000 43200 4320 2419200 86400
;; Query time: 10 msec
;; SERVER: 8.8.8.8#53(8.8.8.8)
;; WHEN: Tue Sep 10 05:59:05 2013
;; MSG SIZE rcvd: 98
[root@vps home]# telnet 37.11.11.11 25
Trying 37.11.11.11...
Connected to 37.11.1.11.
Escape character is '^]'.
220 mydomain.tk - Welcome to Qmail ESMTP
-------------------------------
Something for reading
Why is email from my server marked as Spam?
http://www.serverintellect.com/support/email/avoid-spam.aspx
Email server recipe for avoiding spam filters
http://blog.nahurst.com/email-server-recipe-for-avoiding-spam-filters
How can I prevent my mail from being classified as spam?
http://webmasters.stackexchange.com/questions/3728/how-can-i-prevent-my-mail-from-being-classified-as-spam
rDNS setup to prevent emails appearing as spam / phishing messages
http://serverfault.com/questions/516962/rdns-setup-to-prevent-emails-appearing-as-spam-phishing-messages