--- title: "Email deliverability for SaaS: why it breaks as you scale" id: "26341" type: "post" slug: "saas-spam-to-scale" published_at: "2026-10-22T16:32:49+00:00" modified_at: "2026-10-22T16:38:40+00:00" url: "https://www.mailsoar.com/resources/article/saas-spam-to-scale/" markdown_url: "https://www.mailsoar.com/resources/article/saas-spam-to-scale.md" excerpt: "Onboarding, product alerts and campaigns share one sender reputation. See how SaaS teams fixed deliverability, and meet MailSoar at SaaS North, Booth #A30." taxonomy_category: - "MailSoar News & Events" --- Deliverability usually gets attention only after something breaks. A password reset lands in spam. An onboarding sequence quietly underperforms. A big re-engagement send goes out, and inbox placement drops for everything that follows. For a SaaS company, these are not marketing problems. They hit activation, retention, and revenue. ![MailSoar at SaaS North 2026, Ottawa, Nov 4-5. Meet our team.](https://www.mailsoar.com/wp-content/uploads/2026/10/mailsoar-saas-north-2026-cover-v2.png) ## Why SaaS email is different Most businesses send one kind of email. A SaaS sends several, often from the same domain: - **Transactional emails:** password resets, invoices, login codes. They must arrive, every time. - **Product emails:** usage alerts, feature announcements, in-app notifications. - **Lifecycle and marketing emails:** onboarding, nurture, trial conversion, re-engagement. All of them build, or damage, one shared sender reputation. A single risky campaign can drag your critical product emails down with it. Growth makes it harder: - **Volume spikes** after a launch, a new market, or a big list import. - **More tools** (CRM, marketing automation, support platform, product messaging), each sending in your name. - **Stricter mailbox providers.** Gmail and Yahoo now expect proper authentication (SPF, DKIM, DMARC), easy unsubscribes, and low spam complaint rates from bulk senders. - **International expansion**, with new audiences, new domains, and new sending practices. The result is usually silent: no error message, just fewer emails reaching the inbox. ## What it looks like in practice: SaaS case studies Here is what SaaS and software teams worked on with MailSoar, with inbox placement before and after, as published in each case study: - **[SuperHuman AI](https://www.mailsoar.com/case-studies/saas-b2c/) :** from 60% to 98%. After recurring deliverability issues, they now rarely have problems, and resolve them fast when they do. - **[Arcads AI](https://www.mailsoar.com/case-studies/arcads/) :** from 15% to 100%. A very poor domain reputation turned into solid inbox delivery. - **[Blaze AI](https://www.mailsoar.com/case-studies/blaze-ai/) :** from 25% to 95%. An audit and action plan delivered in just over a week gave the team a clear path to recover. - **[Agicap](https://www.mailsoar.com/case-studies/fintech/) :** from 60% to 98%. Stop the bleeding first, then restructure email across marketing, sales, and product. - **[Swile](https://www.mailsoar.com/case-studies/swile/) :** from 50% to 95%. An audit of their CRM tools, a move from the main domain to subdomains, and a deliverability strategy built for international expansion. Different products, different stacks, same pattern: the problem was invisible until it cost them, and it was fixable once someone looked at the whole email program rather than one campaign. ## What a SaaS team can check this week 1. 1### Separate your streams Keep transactional and marketing mail on different subdomains, so a risky campaign never drags your password resets down with it. 2. 2### Verify authentication Make sure [SPF](https://www.mailsoar.com/deliverability-glossary/#spf-sender-policy-framework) , [DKIM](https://www.mailsoar.com/deliverability-glossary/#dkim-domainkeys-identified-mail) and [DMARC](https://www.mailsoar.com/deliverability-glossary/#dmarc-domain-based-message-authentication-reporting-and-conformance) are aligned on every tool that sends in your name. 3. 3### Watch engagement and complaints Declining opens and rising spam complaints are early warnings. Catch them before inbox placement drops. 4. 4### Plan your volume Warm up new domains and ramp up gradually before big sends, launches or list imports. ## Meet us at SaaS North, Ottawa, November 4 to 5 These are the questions we will be digging into at **SaaS North**, Canada’s largest SaaS conference, at the Rogers Centre in Ottawa. **Talk: “Spam to Scale: Unlocking the Power of Email Deliverability”** Pierre Pignault, CEO of MailSoar, will show how to build an email strategy that scales without sacrificing inbox placement, customer experience, or revenue, and how deliverability can become a growth driver rather than a fire to put out. - **When:** November 5, 10:25 a.m. - **Where:** Room 210, SaaS North AI, Rogers Centre, Ottawa - **Register:**[saasnorth.com](https://saasnorth.com/) **Visit us at Booth #A30** On November 4 and 5, come with a sending domain and your toughest questions about spam folders, blacklists, bounce rates, or authentication. We will show you where your emails land and what could be holding them back. No pitch deck, no pressure. **Book a meeting at SaaS North** Want guaranteed time with our team? Reserve a 30-minute slot at the conference or by video before it. We will look at your current setup, flag quick wins, and tell you straight what we would fix first. No slides, no commitment. [Book a meeting](https://meetings-eu1.hubspot.com/lawrence-heslin/site?utm_source=blog&utm_medium=article&utm_campaign=saas-north-2026) Emails landing in spam? Our deliverability experts help you get back to the inbox. [Book a free call →](https://meetings-eu1.hubspot.com/lawrence-heslin/site?utm_source=blog&utm_medium=inline-banner&utm_campaign=article-booking) ## See you in Ottawa If email is part of how your product reaches customers, we would love to hear how yours is performing. Book a slot in advance, or just walk up to Booth #A30. See you at SaaS North. Get the latest news and updates on MailSoar and email deliverability. [Follow MailSoar](https://www.linkedin.com/company/mailsoar/) ### Get personalized advice Improve your email deliverability and maximize inbox placement with MailSoar. [Talk to a deliverability expert](https://meetings-eu1.hubspot.com/lawrence-heslin/site) [https://trustfolio.co/en-GB/profil/mailsoar-hr0DVt0nk/reference/lZkya2tVFJj](https://trustfolio.co/en-GB/profil/mailsoar-hr0DVt0nk/reference/lZkya2tVFJj) > We partnered with MailSoar to improve our email deliverability and sender reputation. They helped us set up a new dedicated subdomain to isolate our transactional/marketing mail flow from our primary domain, and worked with us to bring our DMARC compliance up to 97%. Since implementing MailSoar's recommendations, our email delivery rate has climbed to 99.6%. Just as importantly, the sender reputation for both humanx.co and mail.humanx.co went from "Bad" to "High". A great turnaround that's had a real impact on our ability to reliably reach our audience. [in](https://www.linkedin.com/in/emilynarcessian/) [Emily Narcessian Global Head of Product, Human X](https://www.linkedin.com/in/emilynarcessian/) [Read the case study](https://www.mailsoar.com/case-studies/human-x/) #### Other deliverability content you might like [https://www.mailsoar.com/resources/webinar/black-friday-email-readiness/](https://www.mailsoar.com/resources/webinar/black-friday-email-readiness/) ##### [MailSoar News & Events](https://www.mailsoar.com/webinar/) ##### Webinar: Is Your Email Program Ready for Black Friday? 13 minutes [https://www.mailsoar.com/resources/article/dkim2-email-authentication/](https://www.mailsoar.com/resources/article/dkim2-email-authentication/) ##### [Authentication & DNS](https://www.mailsoar.com/authentication-dns/) ##### What Is DKIM2, and How Will It Change Email Authentication? 9 minutes [https://www.mailsoar.com/resources/article/new-brand-identity-website/](https://www.mailsoar.com/resources/article/new-brand-identity-website/) ##### [MailSoar News & Events](https://www.mailsoar.com/webinar/) ##### MailSoar unveils a new brand identity and a new website 4 minutes