I just migrated all my sites from another VPS to DO. I have everything working on ISPConfig 3, Debian 7, and just installed roundcube.
I was able to send and receive emails for about 30 minutes, then updated postfix, removed spam assassin / virus scanner and emails stopped working completely. I can no longer send or receive emails. I can log in and emails show they are sent in their sent box, but they don't actually go anywhere.
My server IP is 188.8.131.52, I have my PTR records fine and here is how my zone file looks:
@ IN SOA NS1.DIGITALOCEAN.COM. hostmaster.sitetied.com. (
1391706214 ; last update: 2014-02-06 17:03:34 UTC
3600 ; refresh
900 ; retry
1209600 ; expire
1800 ; ttl
IN NS NS1.DIGITALOCEAN.COM.
MX 10 mail.sitetied.com.
@ IN A 184.108.40.206
www CNAME @
* CNAME @
mail IN A 220.127.116.11
sitetied.com. IN A 18.104.22.168
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