My IP is on hotmails banlist, need help to open or change IP on my website.


When we send out e-post from our website to the customers. We get this messenger:

SMTP error from remote mail server after MAIL FROM:<> SIZE=25630:

host ...... [[url removed, login to view]]: 550 SC-001 (COL0-MC4-F27) Unfortunately, messages from [url removed, login to view] weren't sent. Please contact your Internet service provider since part of their network is on our block list. You can also refer your provider to [url removed, login to view]

So our website IP is on hotmails backlist.

We need to open this, or change our IP address (we have a secound ip)

So option one, we need to do this :

Microsoft Hotmail has changed their anti spam policy.

In order to have your IP unblocked, please sign up for the JMPR program


[url removed, login to view]

Furthermore, for proper mail delivery, the following anti-spam methods

are very important to make sure the email is delivered to users inbox.

Most public email service providers Yahoo, Hotmail and Gmail do use

these parameters to flag email is spam or not.

1. Setup Reverse IP for your mail server with PTR in DNS.

You can add RDNS/PTR records to your IP, in the self service center.

2. Setup SPF Record in your DNS

SPF record is setup using TXT record in your dns zone file. Visit

[url removed, login to view] for more information about setup and configuration.

Option to:

Configure the additional IP instead of the main IP.

You can change the address at:


Bouth option don't need to be done, only one of them. Se we can have the e-post from our website work perfectly again =)

Anyone that can help us, so we can start sending out "order update" from our netshop again =) ?

Best regards


Skills: HTML, Javascript, MySQL, PHP, Prestashop

See more: sign aspx, php mail help, open messages, open dns, help center website, dns service, at&t help support, 550 ptr record,, sign up for yahoo messenger, inbox sign, email list providers, best remote, e mail address at yahoo com need help, dns org, the server is sending spam from a website, self service, remote help, ptr record, network troubleshooting, microsoft configuration, messenger work part 2, host my website, help us, help center

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To just change the IP is almost no effort. But to harden your server a bit might take some thoughts - and you'll need to help a bit, by discussing which of the many available options are those that fit your particular More

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