E-mails bouncing

[lexybomb]

All of my business contacts have been complaining today about mail bouncing back to them. I use a POP set-up and have done so for over a year and have never had any issues. I get 2 e-mails sent to me (would prefer 1 but I get 2). Today I'm only getting the 1 and one of my contacts sent me a copy of what he is getting. I will put xxx's in to safeguard privacy for the e-mail addresses mentioned:

-----Original Message-----

From: Mail Delivery System [mailto:MAILER-DAEMON@ofarelay02.b.hostedemail.com]

Sent: Wednesday, June 27, 2012 3:52 PM

To: steve@xxxxxxxxx.com

Subject: Undelivered Mail Returned to Sender

This is the mail system at host ofarelay02.b.hostedemail.com.

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

<xxxxxxxx@hotmail.com>: host mx4.hotmail.com[65.55.92.184] said: 550 SC-002

(SNT0-MC4-F45) Unfortunately, messages from 64.98.36.17 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

http://mail.live.com/mail/troubleshooting.aspx#errors. (in reply to MAIL

FROM command)

I did go and look up the error per the link above and it states this:

550 SC-002

Mail rejected by Hotmail for policy reasons. The mail server IP connecting to Hotmail has exhibited namespace mining behavior. If you are not an email/network admin please contact your Email/Internet Service Provider for help.

So, I'm reporting it to you guys in the hopes this can be fixed. What other information do you need from me for this to be rectified? OR, do I need to contact someone specifically to get this fixed?

Thanks!

[smitchell80]

Hi,

Thanks for the details I'll have someone from our escalation team review this bounce message and respond back ASAP.

Thanks for your patience.

-Sidney

[lexybomb]

Faboo! Thanks Sidney!

[Andrei_Duca]

Thank you for your patience and apologies for the delay in posting here.

We have contacted our mail service provider and it's confirmed that the IP in question - 64.98.36.17 (from the bounce message) is their Forwarding server IP.  This tends to get blacklisted due to what the forwarding server does.  Basically, if any spam is sent to this customer and it makes it through our filters then they are forwarding that on to their hotmail account, which causes them to look bad.  You can imagine that many users on our mail system forward email from their account here to their local ISP or hotmail/gmail/yahoo account to consolidate. 

Our security team is attempting to contact MSN to resolve the issue with our forwarding IP. Emails sent directly from a hostedemail customer's mailbox will go through as I've tested this and it works.  It's only when email is forwarded to hotmail that it fails.

I hope this helps!

Andrei

[lexybomb]

Thanks Andrei.

The problem seems to have stopped for me as I'm again getting 2 e-mails and my clients aren't complaining about bounce-backs. So, I guess for me it's sorted. Glad I brought it up as it may be affecting others too.

Thanks again!

Lexy

[Andrei_Duca · Accepted solution]

Our mail Security Team was able to contact Microsoft, and we have confirmed that our IP address has been removed from their blacklist Lexy.  Our logs are now showing that mail to Hotmail servers is once again being delivered successfully.

Have a great day!

Andrei

[lexybomb]

Great! Thanks!

I'm glad I bought it up then as I'm sure it may have been affecting others and now it's all sorted,

Lexy

[therodee]

Hi!

I have the same problem:

This is the mail system at host smtprelay03.b.hostedemail.com.

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

<xxx>: host mx01.azurepack.com[46.231.195.34] said: 550

   5.7.1 Your mail server was blocked for sending out SPAM. Please contact

   your IT Support immediately. Your server with IP 64.98.42.1 is blacklisted

   in SpamCop IP Block List Provider SPAM database. For delisting details

   visit: http://www.spamcop.net/w3m?action=checkblock&ip=64.98.42.1 (in reply

   to RCPT TO command)

Reporting-MTA: dns; smtprelay03.b.hostedemail.com

X-Postfix-Queue-ID: 6B41C1A7014

X-Postfix-Sender: rfc822; xxx@xxx

Arrival-Date: Wed, 24 May 2017 17:39:17 +0000 (UTC)

Final-Recipient: rfc822; xxx@xxx

Original-Recipient: rfc822;xxx@xxx

Action: failed

Status: 5.7.1

Remote-MTA: dns; mx01.azurepack.com

Diagnostic-Code: smtp; 550 5.7.1 Your mail server was blocked for sending out

   SPAM. Please contact your IT Support immediately. Your server with IP

   64.98.42.1 is blacklisted in SpamCop IP Block List Provider SPAM database.

   For delisting details visit:

   http://www.spamcop.net/w3m?action=checkblock&ip=64.98.42.1

[craig@burkill.com.au]

My client had this identical problem yesterday .... so I think we can say it certainly has not been fixed!

On 15/8/18, 11:16 am, "Mail Delivery System" <MAILER-DAEMON@smtprelay05.b.hostedemail.com> wrote:

    This is the mail system at host smtprelay05.b.hostedemail.com.

    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

    <adrian@sumplus.com.au>: host

mx.sumplus.com.au.cust.b.hostedemail.com[64.98.36.4] said: 552 5.2.2 Quota

        exceeded (mailbox for user is full) : pin58_7571c384d0136 (in reply to end

        of DATA command)

    Reporting-MTA: dns; smtprelay05.b.hostedemail.com

X-Postfix-Queue-ID: E276132AFCC

X-Postfix-Sender: rfc822; john@sumplus.com.au

    Arrival-Date: Wed, 15 Aug 2018 01:16:34 +0000 (UTC)