Email blacklist

[Barmaid]

I have just tried to email the office and have got the following:-

Remote host said: 550 You are listed on some DNS blacklists. Get delisted before trying to send us email.

I've spoken to them and apparently it is a problem my end. Trouble is, whoever I email I get this back.

How do I get "delisted" and why has this happened?

TIA

[Davethedog]

Hope this is helpful

http://coreofficedesi...A.woa/wa/page?id=9722

[ChuckFickens]

Try unplugging your router for a minute and then plugging it back in.

Hopefully this will get you a new IP address that isn't blacklisted.

[MarkRae]

Assuming it's actually the IP address which is blacklisted...

[Old_Geezer]

No expert, but if it is a temporarily allocated IP address that as been blacklisted, hasn't someone got something wrong at the blackilst supplier end ?

[ChuckFickens]

What else is going to be in a DNSBL ?

[MarkRae]

Sorry, I meant whether it's the individual IP address or the entire range. Isn't it the case that entire class C addresses have found themselves on DNSBLs...?

[Barmaid]

Dave ta - it would be were it not for the fact that I don't know which servers have blacklisted me. Furthermore, I have no idea why!!

Chuck - I'll try that ta.

For Funks Sake, this is all I need, I have stuff to deliver today.

[ChuckFickens]

It rare for a range to get blocked, and if an ISPs entire range (or a fair chunk of it) had been blacklisted I doubt it would be for too long, the ISP would soon be onto that one.

The other option is, of course, that BMs machine has been compromised by a botnet and has been sending out spam which caused her IP to be blocked. as a precaution you may want to run a full scan with malwarebytes.

[Barmaid]

Right I'll do that first. Although had i been sending out loads of spam I have no doubt SOMEONE would have told me.

Whilst I have been messing about this this one of the cats has nicked one of the chicken breasts I put out to roast off for tea. It just gets better and better.

[ChuckFickens]

the sort of botnet that would get you blacklisted wouldn't just be sending mails to your contacts, it would be sending 10s of thousands of mails to different people.

We got a computer infected where I work resulting in our IP getting blacklisted a couple of years ago, that didn't go down too well :)

[MarkRae]

As Chuck says, most owners of "zombies" don't realise that their machine has been compromised. They often notice the degradation in performance, but usually put that down to other things.

Good wiki article, if you're interested:
http://en.wikipedia.org/wiki/Zombie_computer

[Barmaid]

Well malawarebytes detected one infection which was an "adware toolbar". That's gone.

Now I'll try unplugging the wretched thing.

[ChuckFickens]

myself (and I think MR) missed something here...

Generally you should be using your ISP's SMTP server for out going mails, or, if not the email address providers along with authentication. and as such your own IP address shouldn't matter.

Your error seems to suggest you are running a local SMTP server and that's not normal.

[Barmaid]

lol Chuck, I wouldn't know if it was local or not!!!

I just set up Outlook following the instructions on the btinternet site.