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Help! My friend can't send me mail. He gets an error message pointing at this web site.
Your ISP (internet service provider -- the people you pay for internet access) probably uses the OPSSM list to refuse incoming mail from the IPs of open proxies that have transmitted spam.
Your friend's ISP's mail server IP is probably on the OPSSM list.
Your friend should contact their ISP about this issue. Point them toward the end user information page here on our site.
But I didn't do anything. How come they can't email me today, but they could email me a few weeks ago?
Either your ISP just started using the OPSSM, or their mail server has just been listed as an open proxy. It is likely that spammers just recently started using that open proxy to send spam.
Get out of my mailbox! You have no right to decide what mail I accept.
You're absolutely right, we do not have the right to decide what mail you accept. Using the OPSSM is a choice. We can't force ISPs to use it, and we wouldn't want to.
If you are unhappy about your ISP using the OPSSM, you need to contact them about it. Whether or not your ISP uses the OPSSM is their choice, and as a valued customer of their service, your input should count in their decision making process.
Please note: we can't read mail addressed to you, or mail in your ISP's mailbox, and we have no control over your mailbox.
What is this all about?
The OPSSM is a list of IP addresses that have transmitted spam via an open proxy on that particular machine. People, organizations, and ISPs choose to use the OPSSM on their mail server to refuse mail from those IPs. They choose to do so because it helps reduce the amount of spam their users get. The side effect is that it can block some non-spam mail at the same time. Everybody who uses the OPSSM knows this -- it's plastered all over our web site. Check out more of our site if you'd like more information.
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[ MAPSSM LLC | RSSSM | RBLSM | DULSM | NMLSM | TSI ] Updated 4/15/2003.