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Thread: Hotmail emails bouncing back

  1. #1
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    Hotmail emails bouncing back


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    Hotmail emails bouncing back

    Yesterday afternoon I tried sending an email to a hotmail.com email account. Via the Solent Renegades email server. However it bounced back.


    This is the mail system at host server.solent-renegades.co.uk.

    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 send mail to postmaster.

    If you do so, please include this problem report. You can
    delete your own text from the attached returned message.

    The mail system

    <emailname@hotmail.com>: host mx4.hotmail.com[65.55.33.119] said: 550
    SC-001 (COL004-MC5F22) Unfortunately, messages from 5.77.63.84 weren't
    sent. Please contact your Internet service provider since part of their
    network is on our block list. You can also refer your provider to
    Bad Request. (in reply to MAIL
    FROM command)

  2. #2
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    Hotmail emails bouncing back


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    So I check a well known place to see if it is listed on blacklist servers.
    Network Tools: DNS,IP,Email

    Checking 5.77.63.84 against 95 known blacklists... Listed 0 times with 1 timeouts


    Blacklist Reason TTL ResponseTime
    OK ASPEWS 31
    OK BACKSCATTERER 31
    OK BARRACUDA 63
    OK BBFHL1 31
    OK BBFHL2 31
    OK BLOCKLIST.DE 47
    OK BSB 31
    OK CASA CBL 31
    OK CASA CBLESS 31
    OK CASA CBLPLUS 31
    OK CASA CDL 31
    OK CBL 78
    OK CYMRU BOGONS 31
    OK DAN TOR 31
    OK DAN TOREXIT 31
    OK DNS Realtime Blackhole List 31
    OK DNS SERVICIOS 31
    OK DRMX 31
    OK DRONE BL 31
    OK DULRU 31
    OK EFnet RBL 31
    OK EMAILBASURA 31
    OK FABELSOURCES 31
    OK HIL 31
    OK HIL2 31
    OK IBM DNS Blacklist 47
    OK ICMFORBIDDEN 31
    OK IMP SPAM 47
    OK IMP WORM 31
    OK INPS_DE 47
    OK INTERSERVER 31
    OK ivmSIP 31
    OK ivmSIP24 31
    OK JIPPG 31
    OK KEMPTBL 31
    OK Konstant 31
    OK LASHBACK 31
    OK LNSGBLOCK 31
    OK LNSGBULK 31
    OK LNSGMULTI 31
    OK LNSGOR 31
    OK LNSGSRC 31
    OK MADAVI 31
    OK MailBlacklist 31
    OK MAILSPIKE BL 125
    OK MAILSPIKE Z 125
    OK MEGARBL 125
    OK MSRBL Phishing 31
    OK MSRBL Spam 31
    OK NETHERRELAYS 31
    OK NETHERUNSURE 31
    OK NIXSPAM 125
    OK NoSolicitado 31
    OK ORVEDB 31
    OK OSPAM 31
    OK Protected Sky 109
    OK PSBL 31
    OK RATS Dyna 94
    OK RATS NoPtr 94
    OK RATS Spam 94
    OK RBL JP 31
    OK RSBL 31
    OK SCHULTE 31
    OK SECTOOR EXITNODES 31
    OK SEM BACKSCATTER 47
    OK SEM BLACK 47
    OK Sender Score Reputation Network 31
    OK SERVICESNET 31
    OK SORBS BLOCK 31
    OK SORBS DUHL 31
    OK SORBS HTTP 31
    OK SORBS MISC 31
    OK SORBS NEW 31
    OK SORBS SMTP 31
    OK SORBS SOCKS 31
    OK SORBS SPAM 31
    OK SORBS WEB 31
    OK SORBS ZOMBIE 31
    OK SPAMCANNIBAL 31
    OK SPAMCOP 31
    OK Spamhaus ZEN 31
    OK SPEWS1 31
    OK SPEWS2 31
    OK SWINOG 31
    OK TRIUMF 31
    OK TRUNCATE 31
    OK UCEPROTECTL1 31
    OK UCEPROTECTL2 31
    OK UCEPROTECTL3 31
    OK URIBL multi IP 31
    OK VIRBL 31
    OK Woodys SMTP Blacklist 31
    OK WPBL 31
    OK ZapBL 31
    All checked out okay, so we are not on any blacklists.

  3. #3
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    Hotmail emails bouncing back


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    So delved into this deeper, as there must be something stopping emails to Outlook.com / Hotmail.com There was a link in the bounce back email. So followed that, they have a review server that you can submit to and to find out why they wont accept emails from us. I get a reply.

    We have completed reviewing the IP(s) you submitted. The following table contains the results of our investigation.

    Conditionally mitigated
    5.77.63.84
    Our investigation has determined that the above IP(s) qualify for conditional mitigation. These IP(s) have been unblocked, but may be subject to low daily email limits until they have established a good reputation.

    Please note that mitigating this issue does not guarantee that your email will be delivered to a user's inbox.

    Ongoing complaints from users will result in removal of the mitigation.

    Mitigation may take 24 - 48 hours to replicate completely throughout our system.

    If you feel your issue is not yet resolved, please reply to this email and one of our support team members will contact you for further investigation.



    Regardless of the deliverability status, Outlook.com recommends that all senders join two free programs that provide visibility into the Outlook.com traffic on your sending IP(s), the sending IP reputation with Outlook.com and the Outlook.com user complaint rates.

    Junk Email Reporting program (JMRP) When an Outlook.com user marks an email as "junk", senders enrolled in this program get a copy of the mail forwarded to the email address of their choice. It allows senders to see which mails are being marked as junk and to identify mail traffic you did not intend to send. To join, please visithttp://support.msn.com/eform.aspx?productKey=edfsjmrpp&page=support_home_ options_form_byemail&ct=eformts.

    Smart Network Data Services program (SNDS). This program allows you to monitor the 'health' and reputation of your registered IPs by providing data about traffic such as mail volume and complaint rates seen originating from your IPs. To register, please visit Smart Network Data Services.

    There is no silver bullet to maintaining or improving good IP reputation, but these programs help you proactively manage your email eco-system to help better ensure deliverability to Outlook.com users.
    So I have signed up to the SNDS and JMRP to keep an eye on things.

    What I think has happened is the renegades email newsletter goes out, 179 people listed on the forum have a hotmail/outlook email account, not all of them get the newsletter anyway. One a few people drag this to their junk folder, it marks it as spam, escalates to the Outlook folders, and then blacklist our IP address. I can filter out some outlook users, say no activity for 2 years they get deleted from the forum, but is that fair? I wonder what their threshold is, and even if it was the Newsletter that triggered it. It would take a long time to manually edit ever user with an outlook email account and untick them from receiving emails from admin. It would have to do it every couple of weeks as new people join up. Could be a right p.i.t.a. Anyway, I will monitor things to see where the real issue creeps in.

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    Hotmail emails bouncing back


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    This happens frequently on some other mailing lists I belong too

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