SMTP TLS , DMARC Record and some mailing related issues.

[piyushmaheswari]

Hey Buddies !
I want to improve my mail delivery , please help me.

In MXtoolbox , when I tested my Server's SMTP then it shows some issues -
SMTP TLS
Warning - Does not support TLS.

SMTP Banner Check
Reverse DNS does not match SMTP Banner

SMTP Transaction Time
15.578 seconds - Not good! on Transaction Time

and when I check MX of my hostname then it shows these errors -

DMARC Record Published
No DMARC Record found

DMARC Policy Not Enabled.


Please anyone tell me that how can I solve these issues and does these effects on mail delivery ?

 

[cPanelLauren]

The first of these is a false positive in most cases and is discussed here: Tutorial - MXToolbox SMTP Failures (false positives)

As for DMARC you'd need to enable and configure the DMARC policy in the Zone Editor interface - if you're not sure how to do this you can read the information here: dmarc.org – Domain Message Authentication Reporting & Conformance