Guest User!

You are not Sophos Staff.

Thread Info
  • State Not Answered
  • Locked Locked
  • Replies 5 replies
  • Subscribers 1 subscriber
  • Views 3293 views
  • Users 0 members are here
Options
Suggested
This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

Failover MX-Scenario

IngoPohlschneider
Hello
I am currently thinking about implementing a fallback scenario for our mail-server.

Currently we are using two uplinks with static addresses. One is used for mail (via Multipath rule). The MX record points to an A record which resolves to this static address.

What I now want is the following:
mydomain.de MX 1 mail1.mydomain.de
                      MX 10 mail2.mydomain.de

mail1.mydomain.de A 
mail2.mydomain.de A 

The fallback line is configured for standby, so its down while the other line is up. If I understand MX-records correctly, this config would ALWAYS refer to mail1.mydomain.de unless mail1.mydomain.de is unreachable right?

So that would be a working Failover scenario that would also make sure that my domain doesn't get blacklisted due to wrong sender address right?

Thanks for you guys double-checking


This thread was automatically locked due to age.
Parents
  • 0
    our links are 10 and 100MBits

    Certainly, that will make a difference with reception time for an email with a very large attachment, but it's not going to make any measurable difference for 80-to-90+% of emails that will be rejected by anti-spam before any content is transmitted.  For the rest of the emails you receive, I bet it won't make one second difference in when you receive them.

    Cheers - Bob
     
    Sophos UTM Community Moderator
    Sophos Certified Architect - UTM
    Sophos Certified Engineer - XG
    Gold Solution Partner since 2005
    MediaSoft, Inc. USA
Reply
  • 0
    our links are 10 and 100MBits

    Certainly, that will make a difference with reception time for an email with a very large attachment, but it's not going to make any measurable difference for 80-to-90+% of emails that will be rejected by anti-spam before any content is transmitted.  For the rest of the emails you receive, I bet it won't make one second difference in when you receive them.

    Cheers - Bob
     
    Sophos UTM Community Moderator
    Sophos Certified Architect - UTM
    Sophos Certified Engineer - XG
    Gold Solution Partner since 2005
    MediaSoft, Inc. USA
Children
No Data
Share Feedback
×

Submitted a Tech Support Case lately from the Support Portal?

Unfiltered HTML