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XF 1.4 Undelivered Mail Returned to Sender

ineedhelp

Well-known member
#1
Since a month or so, anytime my members reply/post/send pms. I keep getting bounced emails. It's happening everyday, all day long.

Example of the email:

This is the mail system at host mydomain-com.nh-serv.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

<xxxxx@live.co.uk>: host mx1.hotmail.com[xx.xx.xx.xxx] said: 550 SC-001
(COL004-MC6F31) Unfortunately, messages from xxx.xx.xxx.xxx 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)
Reporting-MTA: dns; mydomain-com.nh-serv.co.uk
X-Postfix-Queue-ID: 01145480003
X-Postfix-Sender: rfc822; info@mydomain.com
Arrival-Date: Mon, 9 Nov 2015 15:45:31 +0000 (GMT)

Final-Recipient: rfc822; xxxxx@live.co.uk
Action: failed
Status: 5.0.0
Remote-MTA: dns; mx1.hotmail.com
Diagnostic-Code: smtp; 550 SC-001 (COL004-MC6F31) Unfortunately, messages from
xxx.xx.xxx.xxx 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.

From: XXXXXXXXXX - XXX XXXXXX XXX XXX! <info@mydomain.com>
Subject: XXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXX
Date: 9 November 2015 15:45:31 GMT
To: Ram <xxxxx@live.co.uk>
And then it contains the thread info.

How do I fix this, ASAP. Thanks!
 
#2
Is it plugged in?

Just kidding.:D

Maybe check your email options, something could be incorrect. There are some settings there for bounced emails. I don't have any experience with this so this is all the info I can provide.

ACP -> Options -> Email Options
 

ineedhelp

Well-known member
#3
Is it plugged in?

Just kidding.:D

Maybe check your email options, something could be incorrect. There are some settings there for bounced emails. I don't have any experience with this so this is all the info I can provide.

ACP -> Options -> Email Options
I don't think it should be or will be that. Because I've not changed any of the settings in over a year or two+

Anyone know what's gone wrong?