Lisa’s App of the Week – E-mail Optimization Instruments



This app of the week options two essential (and free!) electronic mail optimization instruments we use to check the deliverability of our emails: MX Toolbox and Google Postmaster.

By Lisa Heay, Director of Enterprise Operations at Heinz Advertising

For this week’s App of the Week publish, I wished to spotlight two further free apps which have helped us alongside on our electronic mail optimization journey. I’ve already coated one electronic mail optimization workhorse in a earlier App of the Week publish,, however there are a couple of extra, MX Toolbox and Google Postmaster, that ought to make up any Advertising Operations skilled’s arsenal.

MX Toolbox

MX Toolbox

MX Toolbox offers community diagnostic and lookup instruments, enabling professionals to watch, analyze, and optimize their electronic mail supply, and diagnose and resolve a variety of electronic mail and community infrastructure points.

Customers can carry out exams to test the well being of their electronic mail servers, confirm electronic mail supply, and troubleshoot any issues that will come up. The platform conducts checks on varied parameters together with blacklist standing, SMTP connectivity, and message header evaluation to supply a complete overview of electronic mail system efficiency.

MX Toolbox additionally provides DNS-related instruments and providers. Customers can analyze DNS data, carry out DNS lookups, and troubleshoot DNS-related points, guaranteeing correct configuration and functioning of the DNS infrastructure, which is essential for electronic mail supply and general community stability.

For us, we use the free instruments and commonly test to see if is listed on any blacklists, and guarantee our DMARC is ready up appropriately. This software was essential in diagnosing an electronic mail sender situation which in the end led to a dive in engagement charges.

dmarc check

MX Toolbox does have some paid options – and you’ll study extra about their packages right here.

Google Postmaster

google postmaster

Google Postmaster is a service supplied by Google to assist electronic mail senders monitor and optimize their electronic mail supply on Gmail—guaranteeing that reputable emails attain recipients’ inboxes successfully.

This software offers senders with detailed stories on metrics that assist senders consider the effectiveness of their electronic mail campaigns and establish potential points that will negatively affect deliverability.

Along with inbox placement and area and IP status, Google Postmaster will spotlight the next for senders:

Supply errors – permitting senders to pinpoint particular issues that will happen through the electronic mail transmission course of. By analyzing bounce codes and error messages, senders can troubleshoot and rectify points similar to invalid electronic mail addresses or configuration errors.

Spam complaints acquired for a sender’s emails – enabling senders to establish potential content material or sending practices that will set off spam filters, permitting them to regulate their electronic mail content material and sending methods to reduce the probabilities of being marked as spam.

E-mail authentication protocols – offers knowledge on the implementation and effectiveness of authentication mechanisms like SPF, DKIM, and DMARC. This helps senders be certain that their emails are correctly authenticated, lowering the probability of their messages being flagged as spam or being spoofed.

Your entire electronic mail recipients gained’t use a Google platform for his or her mail, however we’ve discovered that if we’re getting good marks by means of Gmail, Outlook and different platforms carry out equally.

To wrap up

You might discover that these instruments (and others, like Mail-Tester, which I’ve coated in one other App of the Week publish) test among the identical issues. It’s true. However they’re all nonetheless price your time, as a result of for us, one software confirmed our DMARC as passing and one other flagged a problem. Collectively these instruments work collectively to point out a reasonably good, complete view of electronic mail deliverability to make sure your messages are being seen.


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