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I have the following DNS records:

ALIAS    domain.com        my-app.herokuapp.com
CNAME    *.domain.com      domain.com
MX       in.domain.com     xxx.mandrillapp.com
MX       domain.com        aspmx.l.google.com

What I'm trying to do is allow incoming mail on in.domain.com to go to Mandrill, but all other mail (including mail.domain.com) to go to Google.

Currently, Mandrill works but Google does not. Any ideas what I've done wrong?

chrism2671
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    Can you elaborate on "not working"? I'm guessing these are not your actual domains. Can you test both your domain.com and your in.domain.com domains using http://mxtoolbox.com/ and post the output back? – Trondh Mar 16 '14 at 16:14
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    Mandrill is for outbound mail you shouldn't need MX records for it, but you should have a SPF record for it. – Jacob Mar 16 '14 at 16:40
  • Google gives me five MX records to put into place, not just one. The one you list is highest priority, but `alt1.aspmx.l.google.com` and `alt2.aspmx.l.google.com` come next, then `aspmx2.googlemail.com` and `aspmx3.googlemail.com`. I'm not sure what the implications of skipping the other four are. – ceejayoz Mar 18 '14 at 01:03
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    @Jacob Mandrill also has an inbound email service that trigger webhooks. http://help.mandrill.com/entries/21699367-Inbound-Email-Processing-Overview – ceejayoz Mar 18 '14 at 01:04

1 Answers1

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Set the lowest MX priority for in.domain.com and a *.domain.com with a higher MX priority.

Divyesh
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