The Linux Foundation subject lines
74 subject lines averaging 63 characters.
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| Oct 28, 2026 4:07 AM | Registration Is Open! KubeCon + CloudNativeCon Europe 2027 | 58 | Registration Is Open! KubeCon + CloudNativeCon Europe 2027 96 Join 13,000+ attendees in… | Oct 28, 2026 4:07 AM · 58 characters. Registration Is Open! KubeCon + CloudNativeCon Europe 2027 96 Join 13,000+ attendees in… | |
| Oct 26, 2026 4:37 PM | 2️⃣ Weeks Until KubeCon + CloudNativeCon North America! | 53 | 2️⃣ Weeks Until KubeCon + CloudNativeCon North America! 96 Build your agenda, meet your… | Oct 26, 2026 4:37 PM · 53 characters. 2️⃣ Weeks Until KubeCon + CloudNativeCon North America! 96 Build your agenda, meet your… | |
| Oct 22, 2026 10:00 AM | Linux Foundation October 2026 Newsletter | 40 | Linux Foundation October 2026 Newsletter 96 AWS joins as Platinum, BUILD and OpenGrid… | Oct 22, 2026 10:00 AM · 40 characters. Linux Foundation October 2026 Newsletter 96 AWS joins as Platinum, BUILD and OpenGrid… | |
| Oct 21, 2026 9:07 AM | 📣 HPSF Conference 2027 CFP Is Open and Registration Is Live! | 60 | HPSF Conference 2027 | Submit to Speak + Register Now 96 Join us in Montréal, April 12-16… | Oct 21, 2026 9:07 AM · 60 characters. HPSF Conference 2027 | Submit to Speak + Register Now 96 Join us in Montréal, April 12-16… | |
| Oct 20, 2026 11:09 AM | Come for the Cloud Native. Stay for the Fun at KubeCon + CloudNativeCon North America | 86 | Come for the Cloud Native. Stay for the Fun at KubeCon + CloudNativeCon North America 96… | Oct 20, 2026 11:09 AM · 86 characters. Come for the Cloud Native. Stay for the Fun at KubeCon + CloudNativeCon North America 96… | |
| Oct 15, 2026 11:04 AM | Meet the Maintainers. Make Your Mark. Register for KubeCon + CloudNativeCon NA | 79 | Meet the Maintainers. Make Your Mark. Register for KubeCon + CloudNativeCon NA 96 Connect… | Oct 15, 2026 11:04 AM · 79 characters. Meet the Maintainers. Make Your Mark. Register for KubeCon + CloudNativeCon NA 96 Connect… | |
| Oct 14, 2026 3:08 AM | Last Chance to Speak: KubeCon + CloudNativeCon Europe 2027 Co-Located Events | 77 | Last Chance to Speak: KubeCon + CloudNativeCon Europe 2027 Co-Located Events 96 Four days… | Oct 14, 2026 3:08 AM · 77 characters. Last Chance to Speak: KubeCon + CloudNativeCon Europe 2027 Co-Located Events 96 Four days… | |
| Oct 13, 2026 12:46 PM | 🚨 9 days to San Jose: Join 3,500+ builders at AGNTCon + MCPCon! | 63 | Final Days to Register for AGNTCon + MCPCon North America 96 Don’t miss 150+ talks, 7… | Oct 13, 2026 12:46 PM · 63 characters. Final Days to Register for AGNTCon + MCPCon North America 96 Don’t miss 150+ talks, 7… | |
| Oct 8, 2026 11:07 AM | Build Your Skills at KubeCon + CloudNativeCon North America | 59 | Build Your Skills at KubeCon + CloudNativeCon North America 96 Cloud Native Theater… | Oct 8, 2026 11:07 AM · 59 characters. Build Your Skills at KubeCon + CloudNativeCon North America 96 Cloud Native Theater… | |
| Oct 6, 2026 3:09 AM | Last Chance: Submit to Speak at KubeCon + CloudNativeCon Europe 2027 | 69 | Last Chance: Submit to Speak at KubeCon + CloudNativeCon Europe 2027 96 Submit your… | Oct 6, 2026 3:09 AM · 69 characters. Last Chance: Submit to Speak at KubeCon + CloudNativeCon Europe 2027 96 Submit your… | |
| Oct 5, 2026 12:26 PM | Register by October 7 to save $450 on AGNTCon + MCPCon NA, Oct 22-23 in San Jose | 81 | AGNTCon + MCPCon North America | See Who's Attending 96 Where the agentic stack is being… | Oct 5, 2026 12:26 PM · 81 characters. AGNTCon + MCPCon North America | See Who's Attending 96 Where the agentic stack is being… | |
| Sep 30, 2026 11:03 AM | See Who’s Headed to KubeCon + CloudNativeCon North America | 58 | See Who’s Headed to KubeCon + CloudNativeCon North America 96 Your future collaborators… | Sep 30, 2026 11:03 AM · 58 characters. See Who’s Headed to KubeCon + CloudNativeCon North America 96 Your future collaborators… | |
| Sep 29, 2026 12:21 PM | AGNTCon + MCPCon North America Is Bringing the Beats and the Bots | 65 | AGNTCon + MCPCon North America | Onsite Activities + Registration Deadline Reminder 96 8… | Sep 29, 2026 12:21 PM · 65 characters. AGNTCon + MCPCon North America | Onsite Activities + Registration Deadline Reminder 96 8… | |
| Sep 24, 2026 3:06 AM | Bring Your Ideas to KubeCon + CloudNativeCon Europe 2027 | 56 | Bring Your Ideas to KubeCon + CloudNativeCon Europe 2027 96 Apply to speak at the main… | Sep 24, 2026 3:06 AM · 56 characters. Bring Your Ideas to KubeCon + CloudNativeCon Europe 2027 96 Apply to speak at the main… | |
| Sep 23, 2026 11:04 AM | The Buzz Is Real.” AGNTCon + MCP North America Is Next, Oct 22-23 in San Jose! | 78 | AGNTCon + MCPCon North America Reviews from Europe 96 See what Europe attendees said—then… | Sep 23, 2026 11:04 AM · 78 characters. AGNTCon + MCPCon North America Reviews from Europe 96 See what Europe attendees said—then… | |
| Sep 22, 2026 11:10 AM | Keynotes Announced for KubeCon + CloudNativeCon North America | 61 | Keynotes Announced for KubeCon + CloudNativeCon North America 96 Hear bold ideas from the… | Sep 22, 2026 11:10 AM · 61 characters. Keynotes Announced for KubeCon + CloudNativeCon North America 96 Hear bold ideas from the… | |
| Sep 21, 2026 2:04 PM | 🔴 THIS WEEK: Livestream Keynotes from OpenSearchCon North America! | 66 | OpenSearchCon North America 2026 | Livestream the Keynote Talks 96 Tune in Sept. 22-24… | Sep 21, 2026 2:04 PM · 66 characters. OpenSearchCon North America 2026 | Livestream the Keynote Talks 96 Tune in Sept. 22-24… | |
| Sep 18, 2026 10:02 AM | 🍀Linux Foundation September 2026 Newsletter🍀 | 44 | Linux Foundation September 2026 Newsletter 96 Linux Foundation September Newsletter: AI… | Sep 18, 2026 10:02 AM · 44 characters. Linux Foundation September 2026 Newsletter 96 Linux Foundation September Newsletter: AI… | |
| Sep 16, 2026 11:11 AM | You Should Be Here: KubeCon + CloudNativeCon North America | 58 | You Should Be Here: KubeCon + CloudNativeCon North America 96 Kubernetes, AI, platform… | Sep 16, 2026 11:11 AM · 58 characters. You Should Be Here: KubeCon + CloudNativeCon North America 96 Kubernetes, AI, platform… | |
| Sep 15, 2026 2:05 PM | ⏰ Last Chance: OpenSearchCon Starts in 1 Week! | 46 | OpenSearchCon North America 2026 | Last Chance to Register 96 Starts September 22! Choose… | Sep 15, 2026 2:05 PM · 46 characters. OpenSearchCon North America 2026 | Last Chance to Register 96 Starts September 22! Choose… | |
| Sep 15, 2026 11:13 AM | 5 reasons you can’t miss AGNTCon + MCPCon North America! | 56 | AGNTCon + MCPCon North America 2026 | Demo Theater Sessions + Kids Day 96 Where the… | Sep 15, 2026 11:13 AM · 56 characters. AGNTCon + MCPCon North America 2026 | Demo Theater Sessions + Kids Day 96 Where the… | |
| Sep 10, 2026 11:05 AM | 🖐️ Reasons to Join KubeCon + CloudNativeCon North America | 56 | 🖐️ Reasons to Join KubeCon + CloudNativeCon North America 96 Big ideas, 11 co-located… | Sep 10, 2026 11:05 AM · 56 characters. 🖐️ Reasons to Join KubeCon + CloudNativeCon North America 96 Big ideas, 11 co-located… | |
| Sep 9, 2026 2:04 PM | 🚨 2 Weeks Until OpenSearchCon North America (Sept. 22-24, San Jose)! | 68 | OpenSearchCon North America 2026 | New Keynotes Announced 96 NEW Keynote Speakers… | Sep 9, 2026 2:04 PM · 68 characters. OpenSearchCon North America 2026 | New Keynotes Announced 96 NEW Keynote Speakers… | |
| Sep 9, 2026 11:04 AM | 5 reasons you can’t miss AGNTCon + MCPCon North America! | 56 | AGNTCon + MCPCon North America Reasons to Attend + Poster Sessions 96 Where the agentic… | Sep 9, 2026 11:04 AM · 56 characters. AGNTCon + MCPCon North America Reasons to Attend + Poster Sessions 96 Where the agentic… | |
| Sep 3, 2026 3:11 AM | CFP OPEN for 13 CNCF-Hosted Co-Located Events at KubeCon + CloudNativeCon Europe 2027 | 86 | CFP OPEN for 13 CNCF-Hosted Co-Located Events at KubeCon + CloudNativeCon Europe 2027 96… | Sep 3, 2026 3:11 AM · 86 characters. CFP OPEN for 13 CNCF-Hosted Co-Located Events at KubeCon + CloudNativeCon Europe 2027 96… | |
| Sep 2, 2026 11:10 AM | Last Day to SAVE + Explore the Tracks Shaping KubeCon + CloudNativeCon North America | 85 | Last Day to SAVE Explore the Tracks Shaping KubeCon CloudNativeCon North America 96 This… | Sep 2, 2026 11:10 AM · 85 characters. Last Day to SAVE Explore the Tracks Shaping KubeCon CloudNativeCon North America 96 This… | |
| Sep 1, 2026 11:34 AM | ‼️ Last Chance to Save on OpenSearchCon North America! · Resent | 53 | OpenSearchCon North America 2026 Last Chance Early Bird Savings 96 Register by September 6… | Sep 1, 2026 11:34 AM · 53 characters. OpenSearchCon North America 2026 Last Chance Early Bird Savings 96 Register by September 6… | |
| Sep 1, 2026 10:59 AM | ‼️ Last Chance to Save on OpenSearchCon North America! | 53 | OpenSearchCon North America 2026 Last Chance Early Bird Savings 96 Register by September 6… | Sep 1, 2026 10:59 AM · 53 characters. OpenSearchCon North America 2026 Last Chance Early Bird Savings 96 Register by September 6… | |
| Aug 27, 2026 11:03 AM | Maintainer Summit Schedule is Live | November 8 in SLC | 54 | Maintainer Summit Schedule is Live | November 8 in SLC 96 Plan your day at the Maintainer… | Aug 27, 2026 11:03 AM · 54 characters. Maintainer Summit Schedule is Live | November 8 in SLC 96 Plan your day at the Maintainer… | |
| Aug 26, 2026 11:02 AM | 8 Weeks Out: Save Now on AGNTCon + MCPCon North America! | 56 | AGNTCon + MCPCon North America 2026 | Explore the Tracks 96 Explore 11 tracks + build your… | Aug 26, 2026 11:02 AM · 56 characters. AGNTCon + MCPCon North America 2026 | Explore the Tracks 96 Explore 11 tracks + build your… | |
| Aug 25, 2026 11:03 AM | Seats Are Limited: RSVP for OpenSearchCon's 2 AI Workshops | 58 | OpenSearchCon North America 2026 | Workshops 96 Create AI agents with OTel or build… | Aug 25, 2026 11:03 AM · 58 characters. OpenSearchCon North America 2026 | Workshops 96 Create AI agents with OTel or build… | |
| Aug 21, 2026 3:10 AM | Call for Proposals is OPEN for KubeCon + CloudNativeCon Europe 2027 | 67 | Call for Proposals is OPEN for KubeCon + CloudNativeCon Europe 2027 96 Submit to speak at… | Aug 21, 2026 3:10 AM · 67 characters. Call for Proposals is OPEN for KubeCon + CloudNativeCon Europe 2027 96 Submit to speak at… | |
| Aug 20, 2026 11:09 AM | Co-located Event Schedules Are Live for KubeCon + CloudNativeCon North America | 79 | Co-located Event Schedules Are Live for KubeCon + CloudNativeCon North America 96 Explore… | Aug 20, 2026 11:09 AM · 79 characters. Co-located Event Schedules Are Live for KubeCon + CloudNativeCon North America 96 Explore… | |
| Aug 18, 2026 11:06 AM | ‼️ Starts in 5 Weeks: OpenSearchCon North America | 48 | OpenSearchCon North America 2026 | See Who's Attending 96 See Who You’ll Meet Sept. 22-24… | Aug 18, 2026 11:06 AM · 48 characters. OpenSearchCon North America 2026 | See Who's Attending 96 See Who You’ll Meet Sept. 22-24… | |
| Aug 13, 2026 11:09 AM | 🎉 Celebrate 5 Years of OpenSearch With Us in San Jose, Sept. 22-24 | 66 | OpenSearchCon North America 2026 | Celebrating 5 Years of OpenSearch 96 2 billion… | Aug 13, 2026 11:09 AM · 66 characters. OpenSearchCon North America 2026 | Celebrating 5 Years of OpenSearch 96 2 billion… | |
| Aug 12, 2026 6:51 PM | Linux Foundation 📰 August 2026 Newsletter | 41 | Linux Foundation 🗞️ July 2026 Edition 96 🎉 Save 35% Sitewide | Celebrate 35 Years of… | Aug 12, 2026 6:51 PM · 41 characters. Linux Foundation 🗞️ July 2026 Edition 96 🎉 Save 35% Sitewide | Celebrate 35 Years of… | |
| Aug 12, 2026 11:02 AM | 🛠️ Sharpen your AI skills at AGNTCon + MCPCon North America | 58 | AGNTCon + MCPCon North America Workshops + MCPA Certification Offer 96 Hands-on workshops… | Aug 12, 2026 11:02 AM · 58 characters. AGNTCon + MCPCon North America Workshops + MCPA Certification Offer 96 Hands-on workshops… | |
| Aug 6, 2026 11:03 AM | Schedule Live for KubeCon + CloudNativeCon North America | 56 | Schedule Live for KubeCon CloudNativeCon North America 96 Save your fave sessions +… | Aug 6, 2026 11:03 AM · 56 characters. Schedule Live for KubeCon CloudNativeCon North America 96 Save your fave sessions +… | |
| Aug 6, 2026 10:03 AM | ❓ Reminder: tell us about your organization’s open source management activities | 79 | ❓ Reminder: tell us about your organization’s open source management activities 96… | Aug 6, 2026 10:03 AM · 79 characters. ❓ Reminder: tell us about your organization’s open source management activities 96… | |
| Aug 5, 2026 11:07 AM | 📣 Keynote Lineup Announced: AGNTCon + MCPCon North America | 58 | AGNTCon + MCPCon North America 2026 Keynotes Announced 96 Leaders from Anthropic, AWS… | Aug 5, 2026 11:07 AM · 58 characters. AGNTCon + MCPCon North America 2026 Keynotes Announced 96 Leaders from Anthropic, AWS… | |
| Aug 5, 2026 10:00 AM | ❓ Reminder: tell us about your organization’s open source management activities | 79 | ❓ Reminder: tell us about your organization’s open source management activities 96… | Aug 5, 2026 10:00 AM · 79 characters. ❓ Reminder: tell us about your organization’s open source management activities 96… | |
| Aug 4, 2026 10:59 AM | 🤖 OpenSearchCon North America: Agentic AI Sessions to See! | 58 | OpenSearchCon North America 2026 | Agentic AI Sessions to See 96 7 weeks left to save!… | Aug 4, 2026 10:59 AM · 58 characters. OpenSearchCon North America 2026 | Agentic AI Sessions to See 96 7 weeks left to save!… | |
| Jul 27, 2026 11:06 AM | ⏰ Ends tomorrow: $375 early bird price for AGNTCon + MCPCon North America | 73 | AGNTCon + MCPCon North America 2026 | Early Bird Ends Tomorrow 96 Save $550 today!… | Jul 27, 2026 11:06 AM · 73 characters. AGNTCon + MCPCon North America 2026 | Early Bird Ends Tomorrow 96 Save $550 today!… | |
| Jul 23, 2026 11:08 AM | 💥 Keynote Speakers Coming to OpenSearchCon North America! | 57 | OpenSearchCon North America 2026 | Keynote Speakers Announced 96 Starts in 8 Weeks… | Jul 23, 2026 11:08 AM · 57 characters. OpenSearchCon North America 2026 | Keynote Speakers Announced 96 Starts in 8 Weeks… | |
| Jul 22, 2026 11:06 AM | 💥 Schedule Live! AGNTCon + MCPCon North America is Coming in HOT. | 65 | AGNTCon + MCPCon North America 2026 | Schedule Live 96 2 days, 11 tracks: October 22-23… | Jul 22, 2026 11:06 AM · 65 characters. AGNTCon + MCPCon North America 2026 | Schedule Live 96 2 days, 11 tracks: October 22-23… | |
| Jul 21, 2026 10:04 AM | ❓ Tell us about your organization's open source management activities | 69 | ❓ Tell us about your organization's open source management activities 96 How does your… | Jul 21, 2026 10:04 AM · 69 characters. ❓ Tell us about your organization's open source management activities 96 How does your… | |
| Jul 20, 2026 10:01 AM | ❓ Tell us about your organization's open source management activities | 69 | ❓ Tell us about your organization's open source management activities 96 How does your… | Jul 20, 2026 10:01 AM · 69 characters. ❓ Tell us about your organization's open source management activities 96 How does your… | |
| Jul 15, 2026 10:59 AM | 🎤 The mic is yours at OpenSearchCon North America! | 50 | OpenSearchCon North America 2026 | Unconference 96 Unconference returns! Join us Sept… | Jul 15, 2026 10:59 AM · 50 characters. OpenSearchCon North America 2026 | Unconference 96 Unconference returns! Join us Sept… | |
| Jul 14, 2026 11:04 AM | Last Chance: Submit to Speak at CNCF Maintainer Summit North America | 69 | Last Chance: Submit to Speak at CNCF Maintainer Summit North America 96 CFP closes July… | Jul 14, 2026 11:04 AM · 69 characters. Last Chance: Submit to Speak at CNCF Maintainer Summit North America 96 CFP closes July… | |
| Jul 1, 2026 11:02 AM | 4️⃣ tracks. 3️⃣ days. Here's what's waiting for you in San Jose! | 60 | OpenSearchCon North America 2026 | Explore the Tracks 96 Register for OpenSearchCon North… | Jul 1, 2026 11:02 AM · 60 characters. OpenSearchCon North America 2026 | Explore the Tracks 96 Register for OpenSearchCon North… |
Based on 74 emails received from Mar 17 to Oct 28, 2026. Times in US Eastern. How we collect