How does Spamhaus block spam emails?
My IP is on a blacklist. What to do?
If e-mails do not reach certain recipients, it is possible that your IP address has been blacklisted. In most cases you will then receive a corresponding error message from the receiving mail server. This can be, for example:
- Remote host said: 554 Transaction Failed Spam Message not queued.
- Client host [203.0.113.42] blocked using (anything) .spamhaus.org; http://www.spamhaus.org/query/bl?ip=203.0.113.42
This message states that the recipient has identified your email as spam and that it has been blocked.
Then check whether your public IP address (which you also use to send e-mails) is on one of the known blacklists. There are numerous websites that allow blacklist queries. E.g. http://www.mxtoolbox.com/blacklists.aspx.
If your IP address is on one or more lists, this can have various causes:
If you do not have a static IP address, it is possible that the person who had the IP address before you sent it spam. In this case, it should be sufficient to simply restart your router or unplug it and plug it in again. Then you should get a new IP address. Then try to send the email again.
If you have a fixed IP address, you must first find the cause of the listing. For example, it can be one of the following:
- You have recently sent a lot of emails to numerous invalid recipients, e.g. in the form of a newsletter.
- There is a virus or trojan on one of your PCs that is sending uncontrolled spam.
After you've found the cause and fixed it, most blacklists allow you to request deletion of your IP address. To do this, visit the website of the corresponding blacklist.
Important: Only apply for deletion after you are sure that you have found the cause and eliminated it. If you continue to send spam after the deletion request, you may be blocked for a long time.
- Does someone like his sibling significant other
- Are you satisfied with your written answers
- How Wattsapp works in the background
- Is your mother dead or alive
- How many copyright laws are there
- What are the medicinal uses of bamboo
- Is there a stimulus for libertarian ideals
- How can drummers protect their ears?
- How did Dharmashala get its name?
- What clean business tactics do you know
- What are some National Guard jobs
- Is a pitcher plant autotrophic
- Is this short essay bad
- What was Robert E Lee fighting for
- What is the best device from Whirlpool
- How is thermal energy generated in atoms
- Is the Khan Academy good for analysis
- Who are your favorite video game bosses
- Who was Casanova
- Which is the biggest company in Nagpur
- What is Gemalto doing
- How did you overcome your guest phobia
- What is a cosmic barber
- Was named James Rodriguez after James Bond
- Why don't my ulcers heal
- Is your dad cooler than you
- Who are some non-hindu avatars
- How can I compliment my partner?
- What are the disadvantages of happiness
- Which compact camera takes pictures quickly?
- Who is Ventus
- What happens when you pop ant bites