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one group of clients isn't receiving my emails.

Last post 03-06-2020, 8:03 by Joerg. 6 replies.
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  •  03-05-2020, 7:18

    • Slim is not online. Last active: 03-07-2020, 22:47 Slim
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    one group of clients isn't receiving my emails.

    Can you help

    One group of clients at a business i correspond with regularly has stopped receiving emails. they have (as an example no real name used ) johndoe@XXX.org email addresses. No -one here gets email from me. I can send to anyone else without problems but not this group. I discovered it after I had replied to an email about a meeting. I got an urgent email asking if I was attending. I had replied, and to several other emails regarding the meeting but they did not and still don't receive emails I send. 

     What could be causing the problem?

     I get no error messages anywhere, and emails are marked as 'sent' in the sent folder of PM and in gamil.. 

     

  •  03-05-2020, 11:35

    • Joerg is not online. Last active: 04-08-2020, 20:06 Joerg
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    Re: one group of clients isn't receiving my emails.

    Sounds like your mail domain has been added to a mailing blacklist with this enterprise. We are experiencing this from time to time. You could check different worldwide blacklist services whether your MX IP or Mail domain is listed there or you could ask the IT of the affected client group to check whether they are filtering your mail. This could happen also without replying an error message to the sender, to avoid that spammers get any reply from a mail server.

    Mercury 4.81.187 @Windows Server 2016, with 16-100 user licence
    Pegasus 4.73.639, network installation
  •  03-06-2020, 2:07

    • Slim is not online. Last active: 03-07-2020, 22:47 Slim
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    Re: one group of clients isn't receiving my emails.

    Thank you that is helpful, how would i check this blacklist service?

     

     

  •  03-06-2020, 4:27

    • irelam is not online. Last active: 04-08-2020, 22:15 irelam
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    Re: one group of clients isn't receiving my emails.

    Try Surbl   at http://www.surbl.org/surbl-analysis  You will need to lookup the Url to get the IP address first.

    Martin 

  •  03-06-2020, 8:03

    • Joerg is not online. Last active: 04-08-2020, 20:06 Joerg
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    Re: one group of clients isn't receiving my emails.

    Here another big blacklist check: https://mxtoolbox.com/blacklists.aspx

    Mercury 4.81.187 @Windows Server 2016, with 16-100 user licence
    Pegasus 4.73.639, network installation
  •  03-06-2020, 8:05

    • Joerg is not online. Last active: 04-08-2020, 20:06 Joerg
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    Re: one group of clients isn't receiving my emails.

    Here another big blacklist check, which is asking different blacklist server: https://mxtoolbox.com/blacklists.aspx. Do only enter your domain name, i.e. "company.com"

    Mercury 4.81.187 @Windows Server 2016, with 16-100 user licence
    Pegasus 4.73.639, network installation
  •  03-06-2020, 14:17

    • caisson is not online. Last active: 03-29-2020, 14:57 caisson
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    Re: one group of clients isn't receiving my emails.

    Have you asked them to check their spam folders?
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