info
Google Groups no longer supports new Usenet posts or subscriptions. Historical content remains viewable.
Dismiss
Best Practice Mail Relay Postfix
50 views
Skip to first unread message
SomeOneFarAway
May 23, 2016, 4:48:54 AM5/23/16
to
Hello Everybody,
I am configuring a multi-instance postfix server as mail relay, and I would like to ask some questions about the best practices to apply when configuring a mail relay with postfix (to avoid being blacklisted by remote mail servers).
My relay is to send internal mail to the outside, no outside mail will be accepted.
1- mydomain, myhostname : currently I am using an arbitrary string that is not resolvable from the outside. Should I change to something that remote server can RDNS ?
2- Should I configure SPF or DKIM to authenticate my relay or it doesn't make sense at a relay level ?
3- What are other security features I can enable on my mail relay ?
Thanks.
BR,
I am configuring a multi-instance postfix server as mail relay, and I would like to ask some questions about the best practices to apply when configuring a mail relay with postfix (to avoid being blacklisted by remote mail servers).
My relay is to send internal mail to the outside, no outside mail will be accepted.
1- mydomain, myhostname : currently I am using an arbitrary string that is not resolvable from the outside. Should I change to something that remote server can RDNS ?
2- Should I configure SPF or DKIM to authenticate my relay or it doesn't make sense at a relay level ?
3- What are other security features I can enable on my mail relay ?
Thanks.
BR,
0 new messages