Problems emailing/failure notices...need help please?

I've been getting several failure notices, and I googled for some reasons and I saw something called blacklisting. I'm not entirely sure why my IP address would be blacklisted. The blacklist lookup site said that this in red: NO REVERSE DNS (PTR) ASSIGNED and to have the administrator to assign it or something.

This is the email I got: It either said this or that such a domain does not exist:



Hi. This is the qmail-send program at yahoo.com.

I'm afraid I wasn't able to deliver your message to the following addresses.

This is a permanent error; I've given up. Sorry it didn't work out.



%26lt;info@rmrg.com%26gt;:

76.253.152.46 does not like recipient.

Remote host said: 550 %26lt;info@rmrg.com%26gt;, Recipient unknown

Giving up on 76.253.152.46.Problems emailing/failure notices...need help please?
The reverse DNS issue has to be fixed by the network administrator. That means that whoever assigned the host name for this IP address didn't coordinate with the owner of the IP address block. If it's your IP address, did you set up reverse DNS for it? That's one of the responsibilities of people who 'own' IP addresses.



As for the email you got, it means exactly what it said. The mail server the email went to has no idea who or what "info@rmrg.com" is. Most likely, it's because there is no such email address. Check with whoever told you that you should email someone at that address.
Most commonly you must ask your ISP to create a PTR record, or delegate it to you. Most mail servers will not accept email from servers without PTR.



You can use Multi Blacklist check here http://www.magic-net.nl/black-list-check鈥?/a>

And check your PTR at this page http://www.magic-net.nl/dns-and-ip-tools鈥?/a>



This is the good practice to make your PTR record same as A record for your mail server record.

1.2.3.4 --- PTR Record ---%26gt; hostname.example.com

hostname.example.com --- A Record ---%26gt; 1.2.3.4Problems emailing/failure notices...need help please?
SOME of your failure notices are spam!!! and should be ignored! So please be careful about, and DO NOT click on any address given in a failure notice under any circumstance! PLEASE!



Some, if they are real, may indicate that you had a leedle tiny typo in the address to which you sent an email...



Some, if you sent an email with the correct address, may indicate:

(1) the person to whom you sent it, doesn't know you as a sender, and treated your email as spam

(2) the person to whom you sent it, had a busy receiving computer, and the busy receiving computer rejected the email out of being too busy or swamped with emails



You could just try again, if you're absolutely positive the address was right.



But again, absolutely, UNDER NO CIRCUMSTANCES, reply to, or click on, an address in an email sent from a "remote host"!!!Problems emailing/failure notices...need help please?
either you typed it in wrong or you have been blacklisted by the recipient.

when typing,watch those upper and lower case letters.