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Unable to receive or send e-mails to certain e-mails

New Poster

Unable to receive or send e-mails to certain e-mails

Hi, for the last 3 - 4 weeks I am unable to send or receive e-mail from certain people, I was able to communicate for years without no problems, we tried both my comcast accounts but none worked. One I use MS Outlook the other one I sign on to xfinity/ comcast to get my e-mails

 

Yesterday the sender finally received an error message, anybody has some ideas how to resolve this for good, I am not sure how many other messages I am not receiving.

 

here is the message:

 

This is the Postfix program at host mail-in-10.arcor-online.net.

 I'm sorry to have to inform you that your message could not be delivered to one or more recipients. It's attached below.

 For further assistance, please see (german language only):

http://www.arcor.de/hilfe/

                    The Postfix program

 <i......@comcast.net>: connect to mx2.comcast.net[2001:558:fe21:2a::6]:25:

    Network is unreachable

--------------------------------

 Reporting-MTA: dns; mail-in-10.arcor-online.net

X-Postfix-Queue-ID: 3pLJ505tm7z8VJL

X-Postfix-Sender: rfc822; h....@arcor.de

Arrival-Date: Wed, 16 Dec 2015 15:00:36 +0100 (CET)

 Final-Recipient: rfc822; i.....@comcast.net

Original-Recipient: rfc822;i.....@comcast.net

Action: failed

Status: 4.4.1

Diagnostic-Code: X-Postfix; connect to mx2.comcast.net[2001:558:fe21:2a::6]:25:

    Network is unreachable

 

Thanks for any feedback on how to resolve this for good

 

 

Email Expert

Re: Unable to receive or send e-mails to certain e-mails

Comcast email can be problematic when the other party is in another country.  Start with Comcast security------------------

 

Comcast Customer Security Assurance-------------------

Normal business hours (6:00 am to 2:00 am EST, 7 days a week)

1 - 888-565-4329




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New Poster

Re: Unable to receive or send e-mails to certain e-mails

Thanks I had some in the US - too :-(  but I will call them