Postmaster rejects e-mails send to hotmail accounts

Dear All,

Postmaster is rejecting e-mails send to hotmail accounts. every time i send to hotmail account i got the following [Undelivered Mail Returned to Sender]


This is the Postfix program at host mail.conin.ae.

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 Postfix program

<maffador@hotmail.com>: host mx2.hotmail.com[65.54.244.40] said: 550 Your
e-mail was rejected for policy reasons on this gateway. Reasons for
rejection may be related to content such as obscene language, graphics, or
spam-like characteristics (or) other reputation problems. For sender
troubleshooting information, please go to http://postmaster.msn.com.
Please note: if you are an end-user please contact your E-mail/Internet
Service Provider for assistance. (in reply to MAIL FROM command)

To be more clear am, using suse linux 9 and am running postfix

Help please.....

The clue is in the bounce message.

Your e-mail was rejected for policy reasons on this gateway. Reasons for rejection may be related to content such as obscene language, graphics, or spam-like characteristics (or) other reputation problems.

Hotmail has decided that you're either spamming them, or your message was so obscene they're not going to deliver it. I've sent all kind of abscenities to hotmail, so it's probably not that.

Most likely your IP address has been blacklisted.

Dave

Also if you're sending mail directly, instead of via your ISP, they may be rejecting it because of that. They will only accpt mail from a known server.

Cheers.

But what if am sending a blank e-mail or e-mail with one word "test". there are no any obscene language, graphics, or spam-like characteristics (or) other reputation problems.....

recently i have sent an e-mail for a non hotmail user and i've got the following messege:

This is the Postfix program at host mail.conin.ae.

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 Postfix program

<islam.amirah@conin.ae>: host public/lmtp[public/lmtp] said: 550-Mailbox
unknown. Either there is no mailbox associated with this 550-name or you
do not have authorization to see it. 550 5.1.1 User unknown (in reply to
RCPT TO command)

just can't figure out why.......please help

Do you always get mail bounces every time you send, or does some mail get through OK?

I only get mail bounces every time i sent to hotmail account.....As i have been notified earler that ISP has changed some POP3 configurations, i guess that i may have to adjust setting in postfix relay.... am not pretty sure about what has been changed from ISP side, but that things has happend for sure........for more prove, i didn't change anything from my side at all and am so sure about it, and i use to send to hotmail accounts normally without any problem, suddenly at one time, all mails sent to hotmail accounts are bouncing back..........

Are emails to AOL bouncing too?
Then MQMan is right.

Hi,

First make sure you have following records for your Mail Server :
1. PTR record
2. SPF record

Check your server for possible compromise of php mail script/Email id. One can generate thousands of mails with thousands of receiptants through a single script daily.

After that
1. Fill up form precisely @ http://support.msn.com/eform.aspx?pr...ail&ct=eformts
Support@Microsoft will get back to you.

2. Register youself with Microsoft SNDS service and check spam generation from your ip.
https://postmaster.live.com/snds/addnetwork.aspx

Frankly speaking, there are lots of things to check.

Note :
We were in the same problem before, and even after much effort Microsoft didn't whitelisted our server. The only solution in that case is Changing IP address of your Mail server.

Update us with output of above.

Regarding following :

<islam.amirah@conin.ae>: host public/lmtp[public/lmtp] said: 550-Mailbox unknown. Either there is no mailbox associated with this 550-name or you do not have authorization to see it. 550 5.1.1 User unknown (in reply to RCPT TO command)

This is just due to non existence of email id.