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216.73.216.59
Your IP
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Domain name
testback.com
google.com
microsoft.com
facebook.com
apple.com
youtube.com
pinterest.com
wikipedia.org
amazon.com
216.73.216.59
Your IP
DNS Lookup
DNS Propagation Checker
SPF Record Lookup
A Record Lookup
AAAA Record Lookup
CNAME Record Lookup
TXT Record Lookup
MX Record Lookup
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DNS
Email
Inbound
MX
Outbound
SPF
testback.com
MX records
Queried
just now
MX
Mail server
1h
Time to live
View CLI command
Local DNS resolver
Authoritative DNS server
macOS
Windows
Linux
Check propagation
qbtestmail1.testback.com
10
Primary
Question and response
Question
dig
testback.com.
MX
Answer
testback.com.
3600
MX
10 qbtestmail1.testback.com.
Authority
The response has no authority records.
Additional
.
0
OPT
; payload 1400, xrcode 0, version 0, flags 0