Enterprise business, 100000 contacts for $300 - $1000/mo

3 Email Marketing Tools with DKIM Authentication

Marcus Taylor
Data refreshed on: 22nd February 2023
Fact checked by Anna Hamzah

Our algorithm used 113k data points to whittle 678 email marketing tools down to 3 with the best performance among enterprise businesses. We may receive a commission if you sign up with a company below.

Your results (3)

šŸ† Recommended for you
1 of 7

Who uses it and why?

78% of ActiveCampaign's small business users are very satisfied with it.
šŸ˜ƒGreat
Great satisfaction score Ā· all users
No data for Customer.io
No data for Customer.io
no data
No data for Constant Contact
No data for Constant Contact
no data
šŸ‘

Exceptional range of features, customer support & integrations.

šŸ‘Ž

CRM functionality is okay but not great.

šŸ‘

Great omni-channel sending options (SMS, push notifications and email)

šŸ‘Ž

Expensive compared to similar products

šŸ‘

An affordable and simple email marketing tool.

šŸ‘Ž

Lacks advanced features and reporting is relatively basic.

What people are saying

4 Ā· 588 ratings

Enterprise users often highlight ActiveCampaign's high deliverability, quality of reporting & compliance.

2.8 Ā· 4 ratings

Users tend to highlight Customer.io's ease of integrating data and good customer support.

1.4 Ā· 701 ratings

Users tend to highlight Constant Contact's email list management features and streamlined functionality.

Growth Marketing Manager at Narrative
Taegan Baxter
Growth Marketing Manager at Narrative

In terms of features, I love using ActiveCampaignā€™s powerful automation builder. More generally, I love the sense of momentum I get from ActiveCampaign and their drive to continue to constantly improve their product.

Senior Director at Billie
Michelle Ballen-Griffin
Senior Director at Billie

Customer.io integrates perfectly into our data / CRM architecture. The flexibility of their API has allowed us to seamlessly update user attributes, create highly targeted workflows, and run experiments.

Owner, A&J King Bakery
Andy King
Owner, A&J King Bakery

Constant Contact is my marketing department.

Used ActiveCampaign before?

Rate your experience

šŸ˜£
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Used Customer.io before?

Rate your experience

šŸ˜£
šŸ™
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šŸ™‚
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Used Constant Contact before?

Rate your experience

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Your recommended plan

Lite
$/mo
for up to 100K contacts

14-day free trial

Free migration

No cancellation fees

Custom
Custom
Contact for more information

Free trial

Free migration

No cancellation fees

Custom
Custom
Contact for more information

Free trial

Free migration

No cancellation fees

Features

A/B Testing

Attribution

Dedicated IP

Integrations

Funnel

Google Ads

Microsoft Dynamics 365

Netsuite

Salesforce

Wrike

Zapier

Zoho

Features

A/B Testing

Attribution

Dedicated IP

Integrations

Funnel

Google Ads

Microsoft Dynamics 365

Netsuite

Salesforce

Wrike

Zapier

Zoho

Features

A/B Testing

Attribution

Dedicated IP

Integrations

Funnel

Google Ads

Microsoft Dynamics 365

Netsuite

Salesforce

Wrike

Zapier

Zoho

ActiveCampaign has 1 plan starting at $549/mo. This plan is the cheapest based on your list size & requirements.

$549/mo is lower than the average cost of $549/mo for plans that cover 100K contacts. This plan comes with 100000 contacts.

$0$137$274$411$549

Customer.io has 0 plans that are customised based on your specific requirements. For pricing visit their website.

$0/mo is lower than the average cost of $549/mo for plans that cover 100K contacts. This plan comes with contacts.

$0$137$274$411$549

Constant Contact has 0 plans that are customised based on your specific requirements. For pricing visit their website.

$0/mo is lower than the average cost of $549/mo for plans that cover 100K contacts. This plan comes with contacts.

$0$137$274$411$549

Used ActiveCampaign before?

Rate your experience

šŸ˜£
šŸ™
šŸ˜
šŸ™‚
šŸ˜„

Used Customer.io before?

Rate your experience

šŸ˜£
šŸ™
šŸ˜
šŸ™‚
šŸ˜„

Used Constant Contact before?

Rate your experience

šŸ˜£
šŸ™
šŸ˜
šŸ™‚
šŸ˜„

How to choose email marketing software with DKIM Authentication

Despite being a commonly requested feature among developers, not all email marketing tools offer DKIM Authentication.
Having analysed 678 different tools across 113k data points, weā€™ve found 6 tools that offer DKIM Authentication and should meet your needs. In this interactive guide, weā€™ll help you whittle this down to a small handful of tools to consider.
šŸŖ„ This guide is personalised to you based on your contacts, budget and business type. If you havenā€™t already entered these, we recommend doing so to improve this guide.

1. Whatā€™s your budget?

How much you spend on email marketing software is going to depend on the size of your contact list, the features you need and what your organisation can afford to invest in an email marketing platform.
Based on 100000 contacts, the average monthly cost of an email marketing tool with DKIM Authentication is $1144/month. As your maximum budget is currently set to 1000 you may want to consider increasing this a little.
While itā€™s true that you get what you pay for with email marketing software, this doesnā€™t necessarily mean that the cheaper platforms are worse.
Firstly, effective email marketing is about communicating the right message to the right person at the right time ā€“ at scale. The more leads you have (and the higher value they are) the higher the potential ROI of your email marketing activity.
As a Enterprise business with 100000 contacts, you'll most likely get a better ROI with a mid-level/premium platform that offers functionality beyond basic newsletters.
Secondly, the price you pay today is unlikely to be the price you pay one year from now. As such, itā€™s prudent to consider how much you might pay if your mailing list doubled or tripled. Donā€™t worry, weā€™ve done the maths for you for the top three tools!
100K contacts
$549/mo
100K contacts
Custom $
100K contacts
Custom $
200K contacts
Custom $
200K contacts
Custom $
200K contacts
Custom $
300K contacts
Custom $
300K contacts
Custom $
300K contacts
Custom $
Visit website
14-day free trial included
Visit website
No free trial
Visit website
No free trial
ActiveCampaign is the most affordable platform today, and will also provide you with affordable list growth longer term.
Lastly, while itā€™s helpful to have a clear budget in mind itā€™s also worth noting that the features (and therefore the results you can produce) with different tools are different. At 100000 contacts, you'll have plenty of scope to improve your results with features like A/B testing and automation sequences, so it makes sense to consider these in your evaluation process.
Which brings us neatly onto our next question.

2. What features do you need?

Besides needing DKIM Authentication, itā€™s worth considering what other critical features you might need from your email marketing software.
Most basic features like templates, an easy-to-use visual editor, and segmentation are table stakes and found in virtually all tools. You may, however, want to consider some of the more unique email marketing requirements that your team needs.
As an
you may wish to consider excluding any tools that donā€™t offer enterprise-grade security features such as SSO & SAML, reputation monitoring and manager approval functionality.
Other enterprise features you might want to consider filtering by include:
  • CRM - Do you need an email marketing platform with a built-in CRM, or will it integrate with your existing CRM?
  • Other systems - Are there any other systems or data warehouses that you need to be able to send data to? If in doubt, choosing an email marketing tool with a REST API will ensure that you can connect it to most systems.
  • Compliance requirements - do you need to be compliant with any regional or industry-specific rules (such as GDPR, CCPA, or HIPAA)?
  • Reporting requirements - Do you need a platform with attribution features that will enable you to report on revenue and ROI?
With 100000 contacts, maintaining list hygiene and optimising email engagement rates will also likely be on your mind. Batch Sending, send time optimisation, dedicated IP and reputation monitoring are all worth checking to help you maximise email deliverability.
If there are any specific features that you need, you can enter them here to automatically filter out any of the 6 tools that donā€™t have them.

3. Does it integrate with your tech stack?

At a minimum, your email marketing software should communicate with whichever platform you use to collect and store customer or user data. This not only helps you hit your marketing objectives by having up-to-date segment information, but it also makes personalising your emails (and therefore increasing engagement) much easier.
As a Enterprise business youā€™ll also want to consider whether or not itā€™s important for your email marketing software to integrate with:
  • Any ERPs, data warehouses, data lakes, or databases.
  • Any reporting tools or dashboards you use
  • Any marketing channels you heavily use (e.g. Google Ads, Instagram Ads)
  • Any internal communication or project management tools you use as a team
While itā€™s ideal to find an email marketing platform with the native integrations that are critical to your business, most tools rely on integrating with a service like Zapier, Make or Automate.io that enables you to connect almost any imaginable combination of tools.
Feel free to enter any integrations you need in the box below to further whittle down your list of 6 email marketing tools.

4. What do other companies like you think?

The email marketing software recommendations on StackUp are made algorithmically ā€“ and most influenced by Satisfaction Score.
This score is based on 100,000ā€™s of ratings weā€™ve collected from real users of these tools. The reason we use this metric is that it highlights the platforms that deliver a good overall experience.
This matters because, letā€™s face it, every email marketing tool says the same thing ā€“ easy to use, a wide range of templates and lots of features.
Yet, much of what separates the wheat from the chaff is revealed through actual usage. From email deliverability rates, to support quality, security and platform stability, these are all things that can make or break an email marketing tool.
Satisfaction Score is a good proxy for this, as the tools with low scores are typically plagued by these issues, whereas those with high scores tend to get these things right.
Based on this, our algorithm has recommended ActiveCampaign as the best-fit for your business with the highest user satisfaction score.

5. Can you try it for free?

All email marketing providers worth considering will offer a free trial. If not, that should probably trigger some alarm bells.
The top three recommendations above all offer free trials, and weā€™d recommend signing up for a trial with at least two of them so you can make a good comparison.
We hope this data-led approach has helped narrow your search and find the right email marketing service for you.
  1. ActiveCampaign (here's the link to start a 14 day free trial- no credit card required)
  2. Sendinblue (hereā€™s the link to start a 14 day free trial - no credit card required)
  3. HubSpot (hereā€™s the link to start a 30-day free trial - credit card required)

About the author

Marcus Taylor

Marcus Taylor is the Founder & CEO of Venture Harbour. Marcus is also an early-stage tech investor & the youngest Patron of The Prince's Trust.