How do you get unblacklisted?

I got a third party email account and attachments weren't working.
I asked them what was wrong. They don't know why.
Then they came back and said my ISP was blacklisted. They sent me a link to go to but I don't have enough experience for it to make sense to me.
And I think no one wants to investigate the problem because I think most companies don't want to deal with spam and I am sympathetic to that. Everybody sends email but if you send an email that someone doesn't want, it can get marked as spam.

Web mail attaching can be blocked by over reaching security, slow ISP or "other." I use email software to send attachments or just share a public dropbox link to the file.
Bob

Your replies are very confusing.

You said;

I got a third party email account and attachments weren't working.

1) Third party email account with who?
2) Attachments are not working; is that significant to the problem you stated in your top post? If so, why?
3) You asked them what was wrong. Who is "them"? Who are they? Who did you ask? How did you ask?

Then they came back and said my ISP was blacklisted

4) Which ISP?
5) Who said that? How did they say it?
6) If your ISP, Internet Service Provider, is blacklisted, how are you now accessing the internet?

From your top post you said;

I switched email providers and they said I am blacklisted.

7) Switch emailed providers from who to who?
Why did you switch email providers?
9) Who said you were blacklisted?
10) How did they say this?

We are in the dark here. Tell us some details.

Mark

Sorry for being confusing.

Years ago, I would do research on the internet and if I found a link I wanted to keep, I would email to myself and then found out that I stopped getting them from my own email at my own ISP so I complained and it got better.

I stopped using my ISP for email. I got a third party email. When I email my friends from that free third party email service, the email goes into their spam folder instead of their inbox.

I checked my email from my paid internet service provider and did some tests. The email goes right in their inbox.

The free email provider says that they checked my internet IP address and said I was on a black list. They gave me this link:

http://whatismyipaddress.com/blacklist-check

My paid email lets me add attachments. The free email says I'm blacklisted and won't let me add attachments.

I want to get away from my paid email but the free email is not letting me. I haven't spammed anyone. I may have sent people email that they don't want. I'm not selling anyone anything.

So may have have sent people e-mails that they don't want. That's spam. Even if it isn't about selling something. Saying you're a Nigerian pricess that wants to get 20 million dollar out of the country, and you, dear receiver, can get 10% of it if you help, is spam also. Saying the receivers e-bank account is blocked and please type your account and password into our form to unlock it is spam also.

Since you're not happy with that particular free e-mail provider, did you research Bob's suggestion of using Google's gmail.com or Microsofts live.com? They are free also.

Kees

Why would Google or Live not be blacklisted?

In any event, I called my ISP. I asked for a new I.P. address. They told me to turn the modem off at night when I go to bed and in three to four hours to turn it back on and I will have a new I.P. address. They can't do anything to give me a new I.P. address but the system will assign a new one.

you have given names.

But in what way are Google and Live connected to your problems?

Mark

a site get bombarded with emails from a specific site. This happens when their SMTP server is brought to a crawl from one specific IP address. That IP address is blacklisted. This back in the early 2000's when worms hit your contact lists and spread to all the people on that list causing email traffic to increase exponentially

.... are OK with each other.

This problem is with your chosen third party email provider who others may have abused and used to send spam and now all emails from it are on a blacklist, which means even those not spamming suffer. Your choices are, use your ISP email, or buy a domain name with a registrar and send email using that domain name, or just get mail service from a major registrar and service provider like network solutions, godaddy, etc. What your friends have going into their spam folder is their business. Any or all of them can "whitelist" your email address for their email account at their ISP's settings page.