# The State of Email Marketing: October edition Canonical: https://brew.new/blog/state-of-email-october-2026 Author: Thomas Park Published: 2026-11-09 Updated: 2026-11-09 The State of Email is our monthly report on what changed for people who send marketing and lifecycle email. Every claim links to its source, and when a company is reporting on its own customers or its own product, we say so. This edition covers October 1 to November 8, 2026. The short version: Google put more AI between your email and your reader, inbox placement at Gmail got harder, the big platforms all doubled down on agents, and one of them is being bought. The November checklist near the end is the part to act on before Black Friday. ![A timeline of eleven email events from October 6 to November 4, 2026: Prime Big Deal Days, Klaviyo Composer for every customer, Gmail AI Inbox and Gmail Live, Braze's October release, Salesforce agreeing to buy Braze, the EU Council's cookie position, Microsoft retiring Prioritize My Inbox, ChatGPT adding iCloud Mail, Chrome autofill reading Gmail, Validity's Gmail placement report and the Klaviyo and HubSpot Q3 results.](/images/blog/state-of-email-october-2026-timeline.png) *Eleven dated events behind this edition. Each one is linked below.* ## Key takeaways - Gmail's AI Inbox and Gmail Live reached paid Google Workspace users in October, and Chrome now fills in order and tracking numbers it reads from Gmail. Your receipts and shipping emails are becoming data an assistant uses, not just messages a person opens. - Validity measured Gmail inbox placement falling from about 91% in Q1 to about 82% in Q3 2026. Treat it as vendor data, but plan for it anyway. - Salesforce agreed to buy Braze for about $5.66 billion. Klaviyo and HubSpot both reported strong quarters and both pointed at agents and MCP as the reason. - Prime Big Deal Days drove $9.86 billion in US online spend, up 8.5%, with more than half on mobile. - Nothing changed in Gmail's or Yahoo's sender rules this month. The work is the same: authentication, low complaints, and email people want. ## The inbox has more AI in it ### Gmail: AI Inbox and Gmail Live On October 15, Google started rolling out [AI Inbox](https://workspaceupdates.googleblog.com/2026/10/gmails-ai-inbox-is-rolling-out-to-paid-Workspace-users.html) to paid Workspace plans in the US. It sorts mail into suggested to-dos and topics to catch up on, and admins can't switch it off. The same day, [Gmail Live](https://workspaceupdates.googleblog.com/2026/10/gmail-live-is-rolling-out-to-paid-Workspace-users.html) began rolling out: ask your inbox a question out loud on your phone and Gemini answers with cards that link to the emails behind the answer. Google's own example questions include order status. Google's [October roundup](https://workspace.google.com/blog/product-announcements/october-workspace-drops-edit-markdown-talk-to-gmail-and-docs-translate-meetings-and-more) confirmed both. ### Chrome reads your order emails On October 28, Google said Chrome's [enhanced autofill](https://blog.google/products-and-platforms/products/chrome/enhanced-autofill-gmail/) can suggest order numbers, tracking details and flight bookings it finds in a user's Gmail, for people using Gemini in Chrome with Personal Intelligence turned on. It's starting in the US. That changes what a good transactional email looks like. If the order number, the carrier and the tracking link sit in live text, an assistant can find them and use them. If they live in an image, it can't. ### Everyone else - **ChatGPT added iCloud Mail and Calendar** on all plans, including Free, [Digital Trends reported](https://www.digitaltrends.com/computing/chatgpt-finally-gets-the-icloud-mail-and-calendar-plugins-users-have-been-waiting-for/) on October 27. It can search, summarize, draft and send. - **Apple shipped iOS 27.2** on October 26, bringing Siri AI to five more languages, [per 9to5Mac](https://9to5mac.com/2026/10/26/apple-releases-ios-27-2-heres-whats-new/). No Mail-specific changes this time. - **Microsoft is retiring Copilot's "Prioritize My Inbox"** in Outlook between October 26 and the end of March 2027, [Office 365 for IT Pros noted](https://office365itpros.com/2026/11/04/prioritize-my-inbox-retirement/). Not every AI inbox feature survives contact with users. ### What this means for you We wrote about this in [Writing email for AI summaries and inbox assistants](/blog/email-for-ai-readers), and October made it more urgent. Put the offer, the deadline, the code and the action in live text near the top. In transactional email, the order number, tracking number and carrier should be text, not part of a graphic. ## Deliverability: Gmail got harder On October 28 Validity published its [read of Gmail inbox placement](https://www.validity.com/blog/email-radar-the-great-gmail-inbox-placement-crash/): an average of 90.97% in Q1 2026 against 81.57% in Q3. Spam-folder placement rose from 5.4% to 9.5%, and mail that never arrived at all rose from 3.6% to 8.9%. Google Workspace business inboxes fell further, from 88.9% to 74.3%. Validity sells deliverability tools and the post doesn't describe its method, so treat the exact numbers carefully. Its explanation is still worth reading: full enforcement of the 2024 bulk sender rules, the relevance-sorted Promotions tab, and AI summaries that mean fewer people open and engage. The practical answer hasn't changed. Authenticate every domain, keep complaints well under Gmail's 0.1% guidance, stop mailing people who never open, and watch placement per provider, not just a blended open rate. In Brew, each sending domain has a [deliverability score](https://docs.brew.new/changelog/posts/domain-deliverability-score) that tests placement at Gmail, Microsoft, Yahoo and Apple. Security is the other half. KnowBe4's [latest phishing report](https://finance.yahoo.com/technology/ai/articles/knowbe4-report-reveals-cybercriminals-abandoning-120000180.html) (vendor data) found spear phishing up 41% year over year, with attacks twice as likely to come from legitimate infrastructure in Q3 as in Q2. Mailbox providers respond to that by trusting unauthenticated mail less. Move your DMARC policy toward enforcement if you haven't; our [30-day plan](/blog/dmarc-p-none-to-reject-in-30-days) walks through it. ## Email platforms: agents everywhere, and a big deal ### Salesforce is buying Braze On October 20, Salesforce agreed to acquire Braze for $47.50 a share in cash, about $5.66 billion, according to [Braze's filing](https://www.sec.gov/Archives/edgar/data/0001676238/000095010326015850/dp254600_ex9902.htm). Braze's roughly 2,770 customers and its real-time engagement and AI decisioning will fold into Marketing Cloud. The deal needs shareholder and regulatory approval and is expected to close in Salesforce's fiscal 2028, [Digital Commerce 360 reported](https://www.digitalcommerce360.com/2026/10/22/salesforce-to-acquire-braze-for-5-66-billion-to-expand-ai-powered-marketing/). If you're a Braze customer, nothing changes today. It's a good moment to check that your templates, audiences and event schemas are exportable, whatever you decide later. ### Klaviyo and HubSpot: agents and MCP are the growth story Both reported on November 4, and both are reporting on themselves. - **Klaviyo** posted revenue of $387.2 million, up 25%, and more than 211,000 customers, [per its filing](https://www.sec.gov/Archives/edgar/data/0001835830/000183583026000045/confidentialfiscalq32026ea.htm). Its Composer agent became [available to every customer](https://www.klaviyo.com/blog/composer-marketing-agent) on October 13. On the [earnings call](https://www.fool.com/earnings/call-transcripts/2026/11/05/klaviyo-kvyo-q3-2026-earnings-call-transcript/), Klaviyo said more than 70,000 accounts use its MCP server, with usage doubling each quarter and running ahead of Composer itself. - **HubSpot** posted revenue of $947.6 million, up 17%, and 311,704 customers, [per its filing](https://www.sec.gov/Archives/edgar/data/0001404655/000119312526447249/hubs-ex99_1.htm). On its [call](https://www.fool.com/earnings/call-transcripts/2026/11/05/hubspot-hubs-q3-2026-earnings-call-transcript/), HubSpot said customers created over 22 million CRM records through ChatGPT and Claude connectors in Q3, up 157% on the quarter, and that 20% of Pro and Enterprise customers use its agents. The interesting number is Klaviyo's. More of its customers reach it through an outside AI assistant over MCP than through its own built-in agent. We see the same pull at Brew: marketers want to work with their email platform from the assistant they already use. We compared how platforms handle that in [Email platform MCP servers: auth, writes and sends](/blog/esp-mcp-servers-compared). ### Smaller launches worth knowing - **Braze** made its Decisioning Studio Go agent generally available, picking subject line, send time and image per recipient with a holdout to measure lift, and put "Agentic Standards" in beta: brand and technical rules an agent checks before launch ([October release notes](https://www.braze.com/docs/releases/2026/10_15_26)). - **Customer.io** shipped a Design Studio API for building emails from your own HTML, plus setup prompts written for AI coding agents ([release notes](https://docs.customer.io/release-notes/)). - **Salesforce** said its Campaign Agent would reach general availability in Marketing Cloud Next [in October](https://www.salesforce.com/blog/introducing-the-campaign-agent-that-turns-goals-into-growth/). - **Resend** launched shared inboxes for AI agents and humans in late October, [according to a third-party write-up](https://sentfrom.ai/blog/resend-inboxes-ai-agents). We couldn't reach Resend's own announcement. A pattern runs through all of these: brand and approval rules that an agent must pass before anything sends. Braze calls them standards; Brew builds the same idea into [approval cards in Slack](/blog/how-to-run-email-campaigns-from-slack-with-approval-before-anything-sends) and confirmation steps over MCP. Expect every platform to have some version by mid-2027. ## Regulation - **EU cookie rules:** on October 21 the EU Council agreed its position on the Digital Omnibus changes to ePrivacy. Consent stays the default, six purposes are exempt, and after a refusal a site must wait four months before asking again, [PPC Land reported](https://ppc.land/eu-council-agrees-4-month-cookie-re-ask-wait-for-digital-omnibus-talks/). The Parliament still has to adopt its own position, so nothing changes yet, and the text doesn't address email tracking pixels. For those, the [CNIL guidance](/blog/cnil-tracking-pixel-rules-email) still applies in France. - **California AI disclosure:** late-September signings included disclosure rules for ads with synthetic performers and for customer-service chatbots, [summarized by Covington](https://www.insideglobaltech.com/2026/10/06/california-governor-signs-over-20-ai-related-bills-into-law/). If an agent writes your support replies, check how they identify themselves. - **No change** to CAN-SPAM, the FTC's click-to-cancel work, or Gmail and Yahoo sender rules in October. ## The holiday season so far - **Prime Big Deal Days** (October 6 and 7) drove $9.86 billion in US online spending across all retailers, up 8.5%, according to Adobe data [reported by Digital Commerce 360](https://www.digitalcommerce360.com/2026/10/08/amazon-prime-day-big-deal-days-sales-2026/). Mobile was 52% of it, and discounts peaked at 20% off. - **NRF** expects November and December retail sales to grow 4.2% to roughly $1 trillion, [Retail Dive reported](https://www.retaildive.com/news/nrf-forecasts-2026-holiday-sales-growth-seasonal-hiring/833239/). - **Omnisend's survey** of more than 4,000 shoppers in four countries (vendor data) found most feel prices rising, about a third plan to hunt for discount codes, and more than a quarter expect to start shopping earlier, [via RetailBoss](https://retailboss.co/omnisend-2026-survey-finds-early-holiday-shopping-is-becoming-a-budget-strategy/). Early, mobile-first and price-conscious. Your Black Friday emails should load fast on a phone, put the real discount in the first screen, and reach people before the weekend itself. ## What we're seeing at Brew Two observations from our own product, for what they're worth. **Marketers edit more than they create.** Over the last 30 days, our email agent handled roughly four edit requests for every new email or variant it designed. The first draft starts the conversation. Most of the work, and most of the value, is in the rounds after it. That's why we've put so much into what an edit reports back and how the editor behaves. **Most websites don't have email-ready animation.** When we built [animation capture](https://docs.brew.new/changelog/posts/more-visual-emails), we tested it on 42 brand websites. Only 19 had self-playing media, such as product videos or Lottie animations, that works as an email GIF. The rest moved with scroll effects and carousels that don't survive the trip into an inbox. ## Your November checklist 1. **Put transactional details in live text.** Order number, carrier, tracking link and delivery date, near the top. Gmail and Chrome now read them. 2. **Check placement per provider, not one blended rate.** Run a seed test on your Black Friday email before you send it to the whole list. 3. **Suppress people who haven't engaged in 6 months** for your biggest holiday sends. Gmail rewards the engagement you keep. 4. **Lead with the offer on mobile.** More than half of Prime Day spend was on phones. 5. **Write down your brand and approval rules** before you let an agent send anything. If your platform supports checks before launch, use them. 6. **Braze customers:** confirm you can export your templates and event data, so you have options whatever the deal brings. ## What shipped at Brew - **[More visual emails](https://docs.brew.new/changelog/posts/more-visual-emails).** The email agent designs each email's layout from your brand guide, captures your site's animations as GIFs, and makes GIFs in seconds. - **[Connect tools from the chat](https://docs.brew.new/changelog/posts/connect-tools-from-chat).** Set up Stripe, Supabase, HubSpot and more without leaving the conversation. - **[An editor that behaves like your inbox](https://docs.brew.new/changelog/posts/email-editor-updates).** Paste options, drag handles, and light text that stays light in Gmail dark mode. - **[Automations built to run for months](https://docs.brew.new/changelog/posts/automations-keep-running).** Every step runs on the latest Brew, and Retry resumes where a run stopped. - **[Clearer answers for agents and code](https://docs.brew.new/changelog/posts/clearer-answers-for-agents-and-code).** Errors that list every problem and MCP results an assistant can read. Everything else is in the [changelog](https://docs.brew.new/changelog/overview).