hi,
this is the setup:
on my provider server control panel i have (for my main domain, that one which will do as nameserver, that i will call “MYdomain” here on bottom):
- ns1 IN A IP
- ns2 IN A IP
and obviously the other needed records…
then, about Virtualmin:
i have some domains with DNS administration hosted somewhere else BUT i want to admin the nameserver, so I set in the providers control panel to manage myself and so I will wait…
SPF in those domains is
domain.com. IN TXT “v=spf1 +all”
DNS Records
$ttl 38400
domain.com. IN SOA ns1.MYdomain.com. root.hostname.MYdomain.com. (
1416867554
10800
3600
604800
38400 )
domain.com. IN A IP
www.domain.com. IN A IP
ftp.domain.com. IN A IP
m.domain.com. IN A IP
localhost.domain.com. IN A 127.0.0.1
domain.com. IN MX 5 mail.domain.com.
domain.com. IN NS ns1.MYdomain.com.
domain.com. IN NS ns2.MYdomain.com.
smtp.domain.com. IN A IP
pop.domain.com. IN A IP
imap.domain.com. IN A IP
mail.domain.com. IN A IP
domain.com. IN TXT "v=spf1 +all"
2014._domainkey.domain.com. IN TXT ( "v=DKIM1; k=rsa; t=s; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAuruY6eByciHDU"
"zer1HDk6zdEmQCHK/f72iz8lBWoYM9sVnDa2RkXfSuA30hdQe9o//iz1uqkoiHv/FJOE+3F4ml4LZsQ5"
"xvF1HX6F031nVqL57b7ssse5ox0XgtpbhbKDx8aDbUK+42bMb+u1ksrPcFKgbwIFmT0V6K3VsM5TyUK+"
"pX82SKU+OyH/M6VyVZJU7X/aeMTj/KZDk4/OFXhYuY0DEHA99H7uv+5mnm1nJ1q+E43zosoZUTiIkIhS"
"lWEDaBZuxDpOfkicj6NBTJtp9Bg1QNIOlntV6kUp1CK1HKSMDNmlB/zAR1qRAzTp02A1YaWZ/D9Da8CO"
"9uWobDrEwIDAQAB" )
-
in this example, is a problem if hostname.MYdomain.com (that is my FQDN) is equal to ns1.Mydomain.com?
-
why Virtualmin adds that root.hostname.MYdomain.com. in SOA?
-
this setup is enough or I also have to do something else?
-
this combination of DKIM+SPF can avoid such a message from Gmail
Our system has detected that this 550-5.7.1 message is likely unsolicited mail.
???
-
one of my domains is receiving that kind of “Undelivered Mail Returned to Sender” from Gmail and didn’t make spamming at all, the user just tried to send himself some test messages from the email set in his domain TO his Gmail account.
Now I’ve set the DKIM. How many days can Gmail take to accept the messages again? Is there a cache? An amount of time they set? -
the problem could be related to inet_protocols = all in Postfix, which now I changed to ipv4 only?
other things to do in order to be safe?
thank you