My emails are not received by comcast.net addresses.

[EddieArcadia]

Hi Comcast,

I own a business and my customers with comcast.net addresses aren't receiving the emails that I send to them.  To get around this, I use a personal gmail address but this isn't a long term solution.

I tested with a family member who has a comcast.net address and he didn't receive the messages either.

Can you help me out?

Thanks.

[Again]

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@EddieArcadia wrote:

Hi Comcast,

I own a business and my customers with comcast.net addresses aren't receiving the emails that I send to them.  To get around this, I use a personal gmail address but this isn't a long term solution.

I tested with a family member who has a comcast.net address and he didn't receive the messages either.

Can you help me out?

Thanks.

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Are you a Comcast Business customer?

[EddieArcadia]

I am not.  The email address I'm sending from is tied to my website hosting.  Thanks.

[EddieArcadia]

The email domain we're sending from is 6gaslogs.com.  I did a blacklist test at MxToolbox and we're not showing up on anything there.

[ComcastCSAEmail · Accepted solution]

@EddieArcadia I've reviewed the domain and it appears to be hitting a 421 error:
http://postmaster.comcast.net/smtp-error-codes.php#421

please refrence to the postmaster page above for explanation. 

[EddieArcadia]

@ComcastCSAEmail Thanks for the information.  I'll forward this to my hosting provider and see what they say.