Exchange 2013 no externals emails

itsk

New Member
On premise domain controller running Windows 2012r2



Exchange will not receive external emails



No firewall on and AV removed



Error from Microsoft Remote Connectivity Analyer:



Test Details

Performing Outbound SMTP Test
The outbound SMTP test failed.
Test Steps

Attempting reverse DNS lookup for IP address 51.219.168.83.
The Microsoft Connectivity Analyzer successfully resolved IP address 51.219.168.83 via reverse DNS lookup.
Additional Details

Performing Real-Time Black Hole List (RBL) Test
Your IP address wasn't found on any of the block lists selected.
Test Steps

Performing Sender ID validation.
Sender ID validation failed.
Test Steps

Attempting to find the SPF record using a DNS TEXT record query.
The SPF record was found.
Additional Details
SPF record found: "v=spf1 ip4:100.42.120.96/27 ip4:100.42.115.0/27 ip4:208.70.208.0/22 ~all"

Parsing the SPF record and evaluating mechanisms and modifiers.
SPF record evaluation resulted in a Sender ID failure.
Test Steps

Evaluating IP address mechanism: "+ip4:100.42.120.96/27"
Additional Details

Evaluating IP address mechanism: "+ip4:100.42.115.0/27"
Additional Details

Evaluating IP address mechanism: "+ip4:208.70.208.0/22"
Additional Details

Evaluating All mechanism: "~all"
All mechanisms indicated a negative status.
Additional Details
Status: SoftFail
 
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