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Senders.co is a specialized email deliverability and infrastructure agency that helps businesses maximize their email outreach success by ensuring optimal deliverability.

New York, New York, USA
$150-$200 USD per hour
10 - 49 employees

Senders.co is an agency specializing in email deliverability and infrastructure. They provide tailored solutions to ensure emails reach the intended inbox, reducing risks of deliverability failures. Their expertise spans email warm-up protocols, domain authentication, and maintaining sender reputations. Working with a variety of clients across industries, they prioritize high-volume sending while mitigating the risks of spam filtering, offering comprehensive deliverability consulting to optimize email campaigns.

Services

  • Email deliverability consulting
  • Domain and DNS setup
  • DMARC, SPF, and DKIM configuration
  • Email warm-up and sender reputation management
  • High-volume email infrastructure setup

Summary of Clients’ Reviews

Clients praise Senders.co for their expertise in resolving complex email deliverability issues and restoring safe sending practices. Customers appreciate their hands-on approach, particularly for diagnosing and fixing DNS and DMARC issues, ensuring successful inbox placement and protecting domain reputations.

Here's their top case studies: Arc, Parabola

And testimonials from clients:

“Getting things done more efficiently is a big part of what 8base is about. We understand the importance of fostering core capabilities without getting sidetracked a million times a day. Handling cold email outbound and deliverability in-house would mean just that – it would have been a frustrating, roundabout way to achieve a goal. So, for our own peace of mind, we wanted someone as capable and savvy as Senders to take care of that for us.”

- Karel Montes, Operations Manager

“If anyone understands the power of smart automation, that’s our team. After all, we built Parabola to help other organizations streamline their most time-consuming, tedious processes. We knew that cold email would be a strong addition to our outreach efforts and it could help us reach more people – if done right. So instead of putting it on all our plates, we found Senders. Their strategy team supported us in the early days of our collaboration, while their deliverability and infrastructure continue to serve as the base of our email outreach, making sure it’s as safe as it is effective.”

- Andrew Udell, Head of Operations

Weekly release update: Apr Week 2
Updates from last week! 👀 Here’s what’s new in Salesforge 📬 & Agent Frank 🤖 1. New Feature Drop: Opt-Out Rate Metric is LIVE! Another slick upgrade just landed—we’ve added a new metric card for Opt-Out Rate in both Sequences and the Agent Frank detailed view in Salesforge! Now you can: See exactly how many prospects are opting out of their outreach Spot sequences that might be too aggressive or missing the mark Tweak messaging and targeting for better engagement (and fewer unsubscribes) This is a big win for deliverability, compliance, and keeping outreach sharp. 2. New Feature Drop: Product Email Notifications Are LIVE! 🚀 We just launched a brand-new layer of real-time visibility — Product Email Notifications are now LIVE in Salesforge! Here’s what you will now get alerted about, straight to their inbox: Mailbox(es) disconnected – so they can reconnect before it hurts deliverability New reply received – excluding OOO and bounces, only the real ones Running out of credits – whether it’s sending, validation, or anything else You can opt-in or opt-out of these notifications anytime from their settings. No more guessing. No more blind spots. Just clean, actionable updates to stay on top of their game. New free tools on salesforge.ai 🔨 The Forge Sales GPT: Use our ChatGPT bot to create cold email sequences based on your ICP and value proposition. We're still working on more features & workflow improvements across all forges in April! 🌱