The nf file has to be checked for the section: remote_smtp:Īnd under that, add the line: interface = ip addressĪfter updating the desired IP address, exim server has to be restarted: service exim restart If you are using exim mail server, it is easy to change the interface IP.
We’ll discuss how to change mail interface IP in 3 popular mail servers. Mail server IP change helps to ensure seamless email delivery with the new IP address, if the previous one gets blacklisted, as delisting an IP address takes time, depending on the blacklisting agency. After pinpointing the culprit, immediate actions such as account suspension, disabling spamming scripts, etc.
Identifying the source of spamming is done by examining the email logs in the server. If the mail server is blacklisted, immediate action we take is to stop the spamming and submit delist request after changing the mail server IP address. This is vital to detect and accomplish an email blacklist removal with minimal calamities. That’s why its vital to protect your mail server from getting into a blacklist in the first place, and if at all it gets listed, timely detection and removal plays an important role.Įmail blacklist removal – How to go about it?Ĭonstant monitoring of the mail server IPs in blacklists can be done using custom scripts. Email service disruption for days or weeks can ruin your business. Once your server IP address get blacklisted for spamming, getting it delisted is a time consuming process. Users can also submit complaints to the blacklisting agencies about spamming servers.Įxamining the mail logs for email bounces and emails returning with a message such as ‘Sorry, you are sending from an IP that has been blacklisted.’, can reveal that your mail server is blacklisted.
Your mail server gets compromised due to any malware or software vulnerabilities.These spam blacklists are often referred to as DNS-based Blackhole List (DNSBL) or Real-time Blackhole List (RBL). There are a number of Spam blacklists online, such as Spamhaus, Sorbs, Spamcop, etc.Įmail blacklisting can usually occur in these scenarios. If your mail server is listed in these blacklists, other mail servers will reject mails from your server. and fix the issues, so that a server failure can be prevented.Įmail blacklists – How do servers get listed in email blacklists?Ī spam blacklist is a database of IP addresses or hostnames of mail servers that are reported as sources of spam. We check the server for security vulnerabilities, performance bottlenecks, hardware health issues, etc. That is why we do regular Preventive Sever Maintenance.Įvery coupe of weeks (or when there’s an abnormal spike in server metrics), we audit the server performance and security.
Periodic audit and preventive maintenanceīut waiting for an issue to happen, and jumping in to rescue is not the best way to keep a server stable. Our experts monitor critical server metrics such as disk usage and server processes round the clock. When we detect an anomaly in the mail logs, we immediately check and investigate for spamming, and prevent a blacklist. So, if you want uninterrupted mail services, you’ll need to stay clear of blacklists.Īt Bobcares, our Server Engineers help hundreds of businesses prevent IP blacklisting by blocking inbound and outbound spam. Users end up facing email delivery failures and bounces, which can take your business reputation for a toss.Īs a security measure, mail from blacklisted IPs are rejected by most mail servers. Getting listed in a spam blacklist is a dreadful experience for server owners.