Blocklist monitoring
Find out the day your domain or sending IP lands on a spam blocklist, not weeks later when customers stop getting your mail.
What it does
Add a domain name or a public IPv4 address. We check it against well-known public blocklists straight away and then every six hours. When it becomes listed, the account’s owners and admins get an email that names the list and the reason. When it clears, they get another.
- Domains are checked against domain blocklists: Spamhaus DBL, SURBL and URIBL.
- IP addresses are checked against IP blocklists: Spamhaus ZEN, SpamCop, UCEPROTECT level 1 and the Passive Spam Block List.
What to monitor
Your sending domain, and the IP address of any server that sends your mail from its own address, such as a web host running WordPress. Mail sent through SendSend uses Amazon SES addresses that we do not ask you to watch.
What the status means
clean: none of the lists we could ask has it.listed: at least one list has it.listed_onsays which lists and why.unknown: no list would answer. Some lists refuse queries from busy resolvers. We never count a refusal as clean, and a list that listed you and then refuses to answer cannot clear you. We try again at the next check.
If you are listed
Each list explains why it listed you and how to ask for removal. Fix the cause first (a compromised website, a hijacked form, or mail sent to people who did not ask), or you will be listed again. After you have asked for removal, use Check now to see when it clears. A monitor can be checked once a minute.
Limits: 2 monitors on Free, 16 on Pro and 64 on Scale. A clean result is not a promise of delivery, because there are many more lists than these. For a one-off look at your domain’s records, use the free domain checker.