Why is my AWS hostname blacklisted in Abusix and how do I resolve it?

Email marketer from CloudCommunity.com recommends regularly monitoring your AWS resources for unusual network activity. Use AWS CloudWatch and other monitoring tools to detect and respond to potential security threats that could lead to blacklisting.

Email marketer from EmailAdminForums.net states it is imperative to implement SPF, DKIM, and DMARC records for your domain to help prevent spoofing and improve email deliverability. This can help to prevent your AWS hostname from being associated with spam activity.

Email marketer from StackExchange details that if your AWS hostname is listed, investigate immediately to identify the source of the problem (compromised account, script vulnerability, etc.). Once identified, take steps to remediate the issue, such as patching vulnerabilities, changing passwords, and securing your system.

Email marketer from Spamresource.com says that the listing of an AWS hostname is not permanent. Once the spam activity ceases, the hostname will automatically be delisted after a period of time. You can speed up the process by requesting a delisting, but this is only recommended if you are sure that the spam activity has stopped.

Email marketer from SenderVerify says that one of the key reasons an AWS hostname gets blacklisted is due to sending without permission. When a user marks emails as spam, this will affect your reputation, and cause blacklisting issues.

Email marketer from Forums.DigitalOcean.com suggests that if you suspect your AWS hostname has been unfairly blacklisted, contact your internet service provider (ISP) or hosting provider for assistance. They may be able to investigate the issue and help with the delisting process.

Email marketer from Reddit recommends ensuring that your AWS setup complies with AWS's acceptable use policy. They suggest regularly reviewing security configurations and implementing strong access controls to prevent unauthorized use.

Email marketer from MXToolbox says that due to AWS infrastructure hosting spammers, sometimes entire blocks of IPs / hostnames can be blacklisted due to other bad actors. So it may not be your fault, but something malicious has taken place somewhere on the AWS network.

Marketer from Email Geeks recommends that any sender should ensure that no email they send contains anything with an AWS rDNS hostname in it, either in the headers or the body.

Marketer from Email Geeks suggests that if you must have remote images then host them on your own domain. Further explains that sending emails which include a domain (<http://s3.amazon.com|s3.amazon.com>) which is used by loads of people for all sorts of things, including bad things is not a good idea.

Expert from SpamResource.com explains that IP reputation, influenced by factors such as spam complaints, is a significant determinant for blacklisting. AWS IPs, if used for sending unsolicited emails, can quickly damage their reputation and lead to blacklisting.

Expert from Email Geeks says that you don’t need to change where you host the images, you just need to use your own hostname.

Expert from Email Geeks explains that dblack is for listing hostnames that appear in the body of the message.

Expert from Email Geeks shares how to find out if something is wildcard listed by searching for a random word plus the listed part, eg '<http://aardvark.s3.amazonaws.com|aardvark.s3.amazonaws.com>'

Expert from Email Geeks suggests someone decided that maybe wildcard listing s3 was … unwise.

Expert from SpamResource.com details a blacklist is a real-time database of email senders and domains suspected of sending spam. They function as a method of defense against spam and email fraud, and often blacklist results in your email not being delivered.

Documentation from Debouncer.com says that a good idea is to use a tool like Debouncer, which can help analyse your email quality, and advise on setup and content issues that may cause your emails to be marked as spam or for your hostnames to be blacklisted.

Documentation from Abusix.com explains that a hostname might be listed due to spam activity originating from or being advertised via that hostname. This includes but is not limited to, unsolicited email, malware distribution, and botnet command and control.

Documentation from Amazon.com suggests implementing strict outbound filtering to prevent compromised instances from sending spam or other abusive content. Monitoring outbound traffic for unusual patterns can also help to identify and mitigate potential abuse.

Documentation from Multirbl.valli.org explains that a common cause for blacklisting is compromised servers within the AWS infrastructure being used to send spam. It's crucial to secure your instances and monitor for unusual outbound activity.

Documentation from Spamhaus.org shares that you can use tools like Spamhaus Block List (SBL) to check if your hostname is listed. If listed, follow the specific delisting procedure outlined by the blacklist provider.