We take spam control very seriously, we tackle the problem head on with industry leading controls to block spam from entering and leaving our network. By doing our part, we’re able to stop millions of junk messages every year.
Block Senders and entire domains within control panel
Email Filters with keyword rules & conditional autoresponder
MailScanner Spam Scoring with configurable options & dual settings
Virus Scanning with auto-neutralisation keeping you safe
MailChannels with outbound spam scanning
Spam Vetting with SPF & DKIM
Advanced AI Spam Scoring by Signature Analysis & IP Reputation
Advanced Virus Scanning with daily emailed report.
Our AI powered spam filter is able to track trending spam outbreaks across millions of email accounts protecting your mailbox proactively. Sounds complex and it is but here is how we do it…..
Distributed IP Reputation
We analyse senders IP address information in real-time, checking the level of spam being generated by a single server. This enables us to stop spam outbreaks from affecting our customers as a whole within a matter of minutes.
Distributed Signature Analysis
Each email message that is received by our AI is given a signature without inspecting the content, maintaining your privacy. This process enables the AI to spot trending signatures and block a spam outbreak originating from multiple sources, something the IP reputation filter may struggle to identify.
Unlike many other spam providers, We use a shared list of known spam sending addresses, collectively accumulated via our customers block lists. We then implement this list globally, protecting everyone from known scammers and spammers.
In addition to our powerful collective intelligence filters that rely on our distributed network, we have more traditional filtering systems as well.
We scan images embedded in email, including images that have been embedded in PDF files.
We subscribe to several RBL (real-time black list) to see if the sender’s address is on any blacklists. We constantly adjust sensitivity, and validate with multiple sources to confirm if an address is a known spammer.
The power to fight by URL. Spammers require a call to action, they want you to click a link, send an SMS, make a phone call etc. Most commonly they try and get you to click a link in their spam message, either to try and sell you something or infect your computer. we’ve developed our own SURBL that is constantly updated with domains that spammers are using in their email messages.
A modified version of greylisting has been implemented on all our spam servers, which prevents spam bots from sending huge amounts of email. Most spam bots try and deliver email the fastest way possible, when they are told to come back later they simply give up. Real email servers must comply with delivery RFCs that indicate they must retry after a first delivery error.
Bayesian DNA Fingerprinting
Bayesian filtering is a self-learning fingerprinting system. It filters spam based on words that are found in spam, but not found in legitimate email. This technology was advanced when first released, but spammers have figured out how to bypass this one. We do not rely on this much anymore but we still have the technology available.
SPF Sender Policy
Framework SPF fights email address forgery, and prevents spam from being sent from stolen email addresses. SPF makes it easy to identify spam, worms and viruses. SPF is an open source standard being adopted by domain owners to identify legitimate email by verifying the message envelope with the owner of a domain.
Country Blocking By default
We will accept email from every country in the world. If you don’t need to receive email from specific countries place them on your block list. This is one of the most powerful and accurate filtering systems we offer. Preventing delivery of email from countries you don’t normally communicate with is an excellent way to reduce your surface area and can greatly reduce the amount of spam you receive.
All domains are able to define their own blacklists, based on IP address, email address, domain name or attachment types.
Reverse DNS PTR
Messages can be blocked if the email sender does not have a DNS PTR record. All legitimate email servers are required to have reverse name resolution setup, if a sender does not have a reverse name it should not be sending mail.
If a domain is sending mail, it should be able to receive mail as well. If a sending domain does not have MX records defined for their domain we will not accept mail from them. This type of test prevents mail from being sent from virus infected computers around the world where the virus is part of a spam bot network flood mailboxes with spam.