Introducing IP Pools and MX Pattern Grouping in MailerQ 5.4!

April has been a busy and exciting month for MailerQ. Last week we attended the CSA Summit in Cologne where we held a workshop on the interplay between senders and receivers' MTAs. Today, we are happy to bring to you MailerQ Version 5.4 which includes two new highly anticipated features that will further aid to improve your deliverability and sending practices: IP Pools and MX Pattern Grouping.

IP Pools

You ask, we deliver. We are happy to announce the introduction of the IP Pools functionality into MailerQ! In many cases, organizations send out different kinds of emails. Think for instance of monthly newsletters, promotional emails or transactional emails. If you send these different types of emails through separate IP addresses, it helps to protect your overall reputation. In addition, it will give you better insights per email type which can lead to improved deliverability. The new IP Pools feature of MailerQ makes it easier for you to do this. IP Pools enable you to categorize IP addresses in separate pools. For example, you can use a ‘newsletter' pool for monthly newsletters and a ‘transactional' pool for your transactional emails. In this way, your IPs maintain their own reputation and do not get affected by the IPs of a different pool.

MX Pattern Grouping

With MailerQ you can already group domains based on the exact matches on the MX record. With the new MX Pattern Grouping feature you are now also able to group all domains with the MX records, being subdomains of the same domain (i.e. MX IN a.example.com, MX IN b.example.com, ...), together to treat them as one domain group. Grouping your MX Subdomains will help you to adhere to the rules of the recipient's server and set up correct email throttle settings accordingly. For instance, with MX Pattern Grouping you can correctly group domain names that use many short-lived MX records, which are all subdomains of a single domain name, like *.olc.protection.outlook.com or *.yahoodns.com.

Improved performance

MailerQ 5.4 also includes a number of performance optimizations which put less weight on your systems and allow you to send even faster.

• The spool directory now processes files concurrently and asynchronously. This means that MailerQ can more efficiently read and process multiple messages from the spool directory at the same time.
• Flush operations are much faster and use significantly less memory.
• MIME encoding for SMTP is seven times faster, which means you can send messages around 10-20% quicker.

Aside from these two new features and performance optimizations, MailerQ Version 5.4 also includes a number of bug fixes and other improvements. A complete list of all the changes can be found here >>.

MailerQ advises all users to upgrade to the latest version. If you are upgrading from the previous version, please consult the upgrade and downgrade instructions.