E-Mail Health

Answered

elk

• June 04, 2024 14:39

Hi

I checked the smtp settings with mx toolbox and dnschecker for our new server. its a dedicated cpanel server with multiple domains and accounts on it.

the server is a root server but still the hosting provider offers server management.

I receive the following warnings:

• Reverse DNS does not match SMTP Banner.
• No TLS support.

After googling and checking the forum I didn't find a solution. 

Can those problems be solved on a shared hosting environment? If I check other providers, with shared hostings, I don't see those warnings. 

Thanks

• 

  cPRex Jurassic Moderator

  • June 04, 2024 19:20

  Hey there!  No, you likely won't be able to fix anything on a Shared server as the server owner isn't going to want to adjust things just for your domain.  You *may* be able to fix the Reverse DNS issue if your domain is on a dedicated IP address on that Shared machine.

  The TLS test is likely happening over port 25, which wouldn't be the secure port anyway, as all cPanel servers do have secure connections available for email, so you can ignore that portion of the error.

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• 

  elk

  • June 05, 2024 07:06

  hi cPRex

  Thanks for your response.

  It's not a shared server; it's a dedicated server for us, but we will be onboarding many clients. Our provider confirmed that the PTR record is correct and TLS is working. I checked our PTR record, which resolves to the cPanel host.

  I also found this post yesterday evening: Easy-FIX-your-SMTP-banner-SMTP-greeting-and-Reverse-DNS-for-Dedicated-IPs.

  I deactivated "introduce a delay" for evaluation purposes. After that, no warnings were shown. So, as you mentioned in that post, those warnings can be ignored.

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  cPRex Jurassic Moderator

  • June 05, 2024 13:22

  Thanks for the additional details - I'm glad to hear things are working well!

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