Nexus Accelerator Nexus Accelerator Get started

Curated stack

Tested and trusted email solutions for 2026

Brendan Ward

“These Email Service Providers, Data Cleaners and Senders have proven to us comprehensively again, that they are ahead of the game for our clients in 2026, we’re delighted to recommend this email stack publicly to all our Business clients” –

Brendan Ward, Nexus Accelerator, Founder – 2026

Bare Metal Email

Replace Gsuite and Outlook entirely. Bare Metal Email are a next generation Email Service Provider (ESP) focusing primarily on deliverability. Their technical expertise and deliverability forensic know how has removed all remaining technical fear for our clients, with one of a kind email deliverability, IP and domain warming, dedicated IP’s as standard, bad actor removal and reporting that kicks Gsuite and Outlook into the dust.

Emailable

Simply the most comprehensive data cleaning software on the market, the value in terms of security company MX record filtering combined with verified email address filtering and comprehensive risk analysis for each email given email address, by email service provider, Emailable has proven to us through millions of client cleaned emails that their systems are the most sophisticated way to clean data.

Smartlead

An all in one business email sending and inbox management software, with simple campaign creation and integrations, able to track deep user interactions through open and clickthrough rates, as well as campaign followup and simple inbox management for multiple addresses at the same time. Smartlead has edged it’s competition with us again this year.

Key Features

  • Dedicated IPs
  • Whiteglove tech integrations
  • Best in class deliverability increase system
  • Best in class deliverability monitoring
  • Blacklist and blocklist removal
  • IP, Domain and Email warmup
  • Keeps you out of spam by design

Key Features

  • Validate Emails in Bulk
  • Block Invalid Emails
  • Lower Bounce Rate from Bad Data
  • Remove Dangerous Emails from your Subscribers

Key Features

  • Inbox integration with all providers
  • Send and receive mail from a master inbox
  • Hookup all your inboxes into one place
  • Simple Campaign creation Builders
  • Modern UI for Smooth Campaign operation

Recommended ESP

Bare Metal Email

The Email Service Provider (ESP) for businesses and enterprises who need email deliverability as a business critical function.

Forensic Deliverability

  • Dedicated IP’s on Clean Networks.
  • White Glove Technical Integration and Client support.
  • Truly comprehensive ESP reporting per provider, the only ESP who can show you exactly where your mail is landing and improve it today = Fear removed.
Bare Metal Email reporting interface

IP Domain and Email Warmup

  • IP Cleaning and Domain Warmup on all packages.
  • Major ESP Warmup and segmentation and Domain reputation for every account.
  • Customer success Managers and Email Deliverability Accountants for every client.
  • Email HTML analysis and Copy – See where your mail lands, even before you send it – And fix it.
  • The most advanced ESP domain reporting tool.
Bare Metal Email warmup and reporting interface

Talk to Bare Metal Email Now

Bare Metal Email take dedicated client exploration calls with everyone who approaches them – Try getting that from Gmail this year, we’ll wait!

You can book a call with their team’s calendar immediately by clicking below.

Talk to Bare Metal Email

Recommended verifier

Emailable

Improve deliverability, stop list decay, and remove bounces by verifying your emails. Simply upload a list, and export.

See if your data is good or bad

  • Improve email deliverability by cleaning your data sets.
  • Reduce bounces by removing invalid and risky emails.
  • Customize exports and view comprehensive reports.
Emailable bulk validation interface

See your percentages

  • Data Set Deliverability Guarantee.
  • Guarantee that no more than 1% of emails verified as Deliverable will bounce upon sending.
  • Team of experts are located around the globe and are available 24 hours a day.
Emailable reporting interface

Head to Emailable

Checkout the place for you to clean your data sets in 2026.

Emailable

Recommended sender

Smartlead

Our comprehensive suite of professional services caters to a diverse clientele, ranging from homeowners to commercial developers.

Add your providers inboxes and respond from one place

  • Create campaigns & connect mailboxes in 1 step.
  • Auto-rotate the messages in 1 click.
  • Convert prospects into qualified leads and close deals, all in 1 cold email platform.
Smartlead inbox and campaign interface

Categorize your Leads

  • Auto-categorize lead intent using Machine Learning.
  • Focus on closing deals instead of logging into different mailboxes to search for replies.
  • Get a 360-degree view of all your customer emails to always maintain context.
Smartlead lead categorization interface

Go Checkout Smartlead

Head over to Smartlead’s website to see the full functionality of their sending software for your needs.

Checkout Smartlead