PROBLEM
My IP address is blacklisted by some sender reputation RBL and emails are not delivered. How can I remove it form the blacklists?
RBLs
Our dedicated IP are only assigned to one account at a time, so we expect those users to take responsibility for all of the mail that is sent through their account.
Please note: in the event that a sending domain (and not the IP address) is blacklisted, that domain’s controller will be responsible for handling the delisting request.
RBLs are blacklists of IP addresses. One IP address enters into a blacklist for spamming activity. Here you can find instructions on what to do once the IP address entered into one or more blacklists.
Why did you get into the blacklist in the first place?
First of all, make sure you identified the reason for the blacklisting. If you didn't identify and resolve it, you will just make things worse by asking for delisting. The IP will be quickly re-blacklisted and it will be harder to delist it. So, check why the IP has been blacklisted and fix the source of the problem before going ahead. Once you resolved all the problems (if it is a new IP address there is no problem to resolve, of course), you can go ahead with the delisting with the following instructions.
First time cleanup
If you just acquired this IP address, make sure that the dns reverse lookup is set before requesting removal from blacklists. When asked for a reason for requesting delisting, tell that you just acquired the IP address.
Delisting
First of all, let Valli check a bunch of RBLs for you: http://multirbl.valli.org/lookup For each RBL where the IP is listed, follow the link and read the instructions on how to delist. Each RBL has it's own rules, some of them require an email verification in order to delist, some of them require that you explain the reasons of the listing (if it's a new ip address just tell them that this ip address has just been assigned to you), some of them don't allow delisting at all (it's automatic after some time).
In the Valli list of RBLs, some are more important than others. Some important blacklists are Spamhaus, Barracuda, SORBS, V4BL. Start requesting the delisting from the important ones and then proceed until you requested delisting from all of the blacklists that allow it. The ones that don't accept delisting requests will delist automatically after some time (like rbldns.ru).
There are some important blacklists that are not checked by Valli, make sure you remove the IP address also from those:
Outlook (Microsoft): https://support.microsoft.com/en-us/getsupport?oaspworkflow=start_1.0.0.0&wfname=capsub&productkey=edfsmsbl3&locale=en-us&ccsid=636014233369251686 This list doesn't provide a test to check if the IP is blacklisted, you can easily test by sending an email from the LibraCyber IP address to a hotmail email address. If the email does go through then the IP address is not blacklisted, if the email isn't delivered you can read in the SMTP response message the reason. You can find the SMTP response message in the maillog. Copy the text because it is needed in the removal request.
Microsoft Office: https://sender.office.com/Delist This service offers a reputation check. You will be required to enter the ip address and your email address where a confirmation link will be sent.
Google: For blacklist problems follow this link: https://support.google.com/mail/troubleshooter/2696779 To request delisting follow this link (you will not get a reply but it might help): https://support.google.com/mail/contact/bulk_send_new
Trend Micro: https://ers.trendmicro.com/reputations Reputation check available.
Sophos: https://www.sophos.com/en-us/threat-center/ip-lookup.aspx Reputation check available.
Symantec: http://ipremoval.sms.symantec.com/ Reputation check available.
Yahoo: http://help.yahoo.com/l/us/yahoo/mail/postmaster/bulkv2.html This service is not just for bulk mailers, it is also used for delisting requests. Just like the Outlook service above, it does not offer a reputation lookup service so you should test for blacklisting trying to send an email to a yahoo email address and checking the result as described above for Outlook. In order to request delisting you must have a yahoo account, which you can create for free.
AT&T: http://rbl.att.net/cgi-bin/rbl/block_admin.cgi It is not possible to check whether an ip address is listed or not. If your ip address is listed your messages will be bounced with an SMTP clause similar to this: 553 5.3.0 alph155 DNSBL:ATTRBL 521< 199.169.39.199 >_is_blocked.For assistance forward this email to abuse_rbl@abuse-att.net>
T-online: If your ip address is listed your messages will be bounced with an SMTP clause similar to this: host smtp-02.tld.t-online.de[194.25.134.12] refused to talk to me: 554 IP=xxx.xxx.xxx.xxx - None/bad reputation. Ask your postmaster for help or to contact tobr@rx.t-online.de for reset. (NOWL)
Abusix: https://www.abusix.ai/ Delisting and Reputation check available.
Barracuda: https://www.barracudacentral.org/rbl/removal-request Delist request.
Cloudmark: https://csi.cloudmark.com/en/reset/ Delist request.
Comcast: http://postmaster.comcast.net/block-removal-request.html Delist request.
McAfee: https://www.mcafee.com/enterprise/en-us/threat-center/threat-feedback.html Delist request.
Mimecast: https://www.mimecast.com/senderfeedback/ Delist request.
ProofPoint: https://ipcheck.proofpoint.com/ Delist request.
SORBS: http://www.sorbs.net/overview.shtml Delisting and Reputation check available.
SpamCop: https://www.spamcop.net/bl.shtml Delisting and Reputation check available.
Spam rats: https://www.spamrats.com/removal.php Delisting service.
Spamhaus: https://www.spamhaus.org/lookup/ Delisting service.
SURBL: http://www.surbl.org/surbl-analysis Delisting service.
URIBL: https://admin.uribl.com/ Delist service.
Whitelisting
It is a good thing also to enter into white lists: https://www.dnswl.org/selfservice/
IP Reputation Monitoring
There are some services that allow you to monitor your reputation and check it over time. You can take advantage of this services if you send a few thousand emails on a daily basis to domains like gmail or hotmail. For small amounts of email traffic they don't provide feedback.
Google: https://postmaster.google.com/ Microsoft: https://postmaster.live.com/snds/JMRP.aspx