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aluminum
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Frequent Visitor

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19 Messages

Fri, Mar 13, 2020 10:00 AM

An error occurred while sending email

An old problem has resurfaced in the last month or so.  I cat not send email (using Thunderbird) because the VPN servers that are used with the Private Internet Access service that I use seem to be on some blacklist.  When I turn off the VPN, the email gets sent.

 

(For history, see Re: 421 Error when sending email)

 

Here are a number of the error messages:

An error occurred while sending mail: The mail server sent an incorrect greeting: resomta-po-08v.sys.comcast.net resomta-po-08v.sys.comcast.net CSI IP 174.128.xxx.xxx is not permitted to send messages. Please contact support if you feel this is in error..

An error occurred while sending mail: The mail server sent an incorrect greeting: resomta-ch2-08v.sys.comcast.net resomta-ch2-08v.sys.comcast.net CSI IP 194.59.xxx.xxx is not permitted to send messages. Please contact support if you feel this is in error.. (Got this error twice.)

An error occurred while sending mail: The mail server sent an incorrect greeting: resomta-po-06v.sys.comcast.net resomta-po-06v.sys.comcast.net CSI IP 194.59.xxx.xxx is not permitted to send messages. Please contact support if you feel this is in error..

 

Can someone help me out here?

Responses

Official Employee

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580 Messages

1 y ago

@aluminum i've sent you a PM

I am an Official Comcast Employee.
Official Employees are from multiple teams within Comcast: CARE, Product, Leadership. We ask that you post publicly so people with similar questions may benefit from the conversation.
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aluminum

Frequent Visitor

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19 Messages

1 y ago

I did not think that your response answered my issue.

I am now getting the following:

An error occurred while sending mail: The mail server sent an incorrect greeting. resomta-ch2-12v.sys.comcast.net resomta-ch2-12v.sys.comcast.net Message sending error. Please go to http://customer.comcast.com/help-and-support/internet/limitations-on-sending-email/.

 

1.  I cannot get to that Web page probably because it is not certificated (https).  What does this error message mean?

2.  Why am I getting this error message again so frequently? 

 

I am using a VPN and have to disengage the VPN in order to use Thunderbird.  I am not a spammer and should not be treated as one.

 

Again

Expert

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25.6K Messages

1 y ago


@aluminum wrote:

I did not think that your response answered my issue.

I am now getting the following:

An error occurred while sending mail: The mail server sent an incorrect greeting. resomta-ch2-12v.sys.comcast.net resomta-ch2-12v.sys.comcast.net Message sending error. Please go to http://customer.comcast.com/help-and-support/internet/limitations-on-sending-email/.

 

1.  I cannot get to that Web page probably because it is not certificated (https).  What does this error message mean?

 

https://www.xfinity.com/support/articles/limitations-on-sending-email

 

2.  Why am I getting this error message again so frequently? 

 

I am using a VPN and have to disengage the VPN in order to use Thunderbird.  I am not a spammer and should not be treated as one.

 


 

I am not a Comcast Employee.
I am a Customer Expert volunteering my time to help other customers here in the Forums.
We ask that you post publicly so people with similar questions may benefit from the conversation.
Was your question answered? Mark the post as Best Answer!tick
Lord_Basil

Frequent Visitor

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24 Messages

10 m ago

I started to get this same error recently when using a VPN (see attached image).

 

 

 

Frequent Visitor

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7 Messages

10 m ago

I'm getting the same error message just started 2 days ago and I cannot send mail on my iphone either.  I've contacted Comcast and they can't figure out what's wrong (after 2 hours on the phone).  Clearly I'm not the only one.   FRUSTRATED!

Visitor

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3 Messages

2 m ago

Same issue on March 13 and 15th 2021.   Using Thunderbird email with a Bitdefender Virus Security and VPN turned on.  The only way to send a simple email is to exit everything, re-boot with no security or VPN.    Why is this happening now? 

Message is " An error occurred while sending mail: The mail server sent an incorrect greeting:  resomta-po-02v.sys.comcast.net resomta-po-02v.sys.comcast.net Excessive failed authentication, ESMTP server temporarily not available."

jweaver0312

Expert

 • 

1.9K Messages

2 m ago

@user_82e34e 

Please create your own post on this board describing the issue you are facing. Thank you very much. Closing this year old thread.

I am not a Comcast Employee.
I am a Customer Expert volunteering my time to help other customers here in the Forums.
We ask that you post publicly so people with similar questions may benefit from the conversation.
Was your question answered? Mark the post as Best Answer!tick

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