Easily Migrate Your Inumbo Account
Flate rate of $50 annually
Simple And Powerful Anti-Spam
The cloud-based anti-spam service that works with your current e-mail infrastructure. GET STARTED (Discount on Checkout Page)World-Class Anti-Spam
Our email security system reduces spam, viruses and malware by over 99.9%. Keep your business safe from malicious email.
Instant Activation
Inumbo activates the moment you register your domain. If you control your own DNS, you’re up and running in minutes.
High Availability
Fully redundant email, with 100% availability. We have servers all around the globe, and even uses two different TLDs.
State of the art anti-spam technologies
Feature Packed
1000 Email forwarding addresses included
Flexible Forwarding
Up to 10 destination addresses per forward
Regional zones
We have two isolated clusters in EU (Frankfurt) and the US.
Transaction Safe
Many are used to email disappearing in-transit; a result of poor spam filters. We reject or send DSNs.
Frequently asked questions
This is a summary of questions that we’ve received to our support, intercepted from Reddit, et cetera. Please contact us if you have a question that this page doesn’t answer.
MIGRATION
How do I migrate?
Once you’ve opted in for migration with Inumbo, they will provide us with a list of your forwards and once your account is activated, our support team can migrate these to your account. Once you have verified the forwards you will need to change your MX record and the process will be complete.
PRICING
How much does it cost?
Features
What can be done automatically from the control panel?
We add features to the control panel all the time, and it currently support signup, adding domains, changing destination server address and port, tracking messages, viewing statistics and configuring accounts and account lookup method.
What is the maximum attachment size?
A message may be at most 25 MiB, when attaching files within an e-mail message they will be larger than on disk.
How are addresses (recipients) managed?
Either by manually populating the list of valid addresses for your domain, or enabling the API to push valid addresses into the system.
How do I manage my quarantine/spam folder?
By default, you don’t have a spam folder. We simply reject everything we believe is spam, thus notifying the sender that the message wasn’t delivered with a link so that the sender can report the incident. If you want to use a spam folder, containing a copy of each spam that was rejected, simply change spam action to “reject but deliver with tag”.
What IP addresses should I allow email from in my firewall?
In most cases, it’s sufficient to change the mail server port from 25 to something random, and make Inumbo deliver the messages to that port instead. If you really want to fully prevent delivery from other sources, you can send the messages with SASL authentication. We don’t recommend filtering by IP address, because they could change at any time. However, traffic from DuoCircle is generally sent from the IP addresses listed here – https://support.duocircle.com/support/solutions/articles/5000524218-ip-addresses-for-firewalls
What about SLA and availability?
In theory, thanks to its design, email (SMTP) can be made fully redundant, with 100% availability. As described on the Services Agreement we try to achieve that by using different DNS providers (on different TLDs) and deploy many nodes in each mail cluster, in different cities, and sometimes mixed providers (depending on your preferences; there’s a trade-off between vendor trust and availability). This page will be updated with a specific SLA.
What do I need to do on my server?
Most importantly, disable SPF checks in your server. It might also be a good idea to disable any anti-spam in your server, in case it would start rejecting messages from us.
Misc
What about data retention and privacy?
DuoCircle Privacy Policy – GDPR policy for data related policies.
What mail provider do you use for support?
Google Apps, in order for you to contact us even in the unlikely event that all our providers go dark simultaneously.