ExchangeDefender SMTP Headers | ExchangeDefender [ Skip to content ](#main) [ ![ExchangeDefender](/assets/images/xd_logo_blue.png) ](/) Email Security ![Platform Overview](/assets/images/m-xd-pro.png)### ExchangeDefender PRO Enterprise-grade email security made simple for every business. [Sign Up](/sign-up) [Live Demo](/demo) [Email Security Stops spam, malware & phishing in real time. ](/email-security) [Encryption Secure your emails, attachments & sensitive data. ](/corporate-email-encryption) [Web File Sharing Easy, safe cloud file sharing with access control. ](/web-file-server) [Live Archive Locked-in email backup & continuity during outages. ](/livearchive-backup) [Emergency Inbox Keep email flowing without interruption if your provider fails. ](/inbox) [Spearphish Train your team with phishing simulations & risk tracking. ](/spearphishing) Managed Email ### Enterprise-Grade Managed Email Reliable, secure, and fully managed email operations for modern organizations. ![ExchangeDefender](/assets/images/managed_email_menu.png) [Microsoft365/Google Email Management Expert management and security for Microsoft 365 and Google Workspace email. ](/managed-email-operations) [AI Advisory Secure, practical AI consulting & implementation for SMBs. ](/management-ai) Company ### ExchangeDefender: 29+ Years of Trust We are a cybersecurity company focused on business email protection, with 29+ years of experience keeping organizations secure, connected, and resilient. ![ExchangeDefender](/assets/images/careers_1.png) [ About Us Learn our purpose, values, and the mission behind every decision. ](/about-us) [ Blog News, product updates and email security insights. ](/blog) [ Capabilities Discover the tech and expertise that keep your email secure around the clock ](/capabilities) [ Careers Be part of a team using modern tech to solve real threats and ship great work. ](/careers) [Partners](/partners) [Docs](/docs) [Contact Us](/contact) Talk to a Human Open menu Menu ---- Email Security [Email Security](/email-security) [Encryption](/corporate-email-encryption) [Web File Sharing](/web-file-server) [Live Archive](/livearchive-backup) [Inbox](/inbox) [Spearphish](/spearphishing) Managed Email [Microsoft365/Google Email Management](/managed-email-operations) [AI Advisory](/management-ai) Company [About Us](/about-us) [Blog](/blog) [Capabilities](/capabilities) [Careers](/careers) [Partners](/partners) [Docs](/docs) [Contact Us](/contact) Talk to a Human September 7, 2018 · [ExchangeDefender](https://www-preview.exchangedefender.com/blog?category=exchangedefender) ExchangeDefender SMTP Headers ============================= ExchangeDefender mail flow and email analysis troubleshooting is at times a long and difficult process that has been automated through our admin portal at [ **https://admin.exchangedefender.com**](https://admin.exchangedefender.com). We realize that it's not an option for some of our end users and new **MSPs** so we often get tickets in our support portal asking us why a certain message got delayed, rejected, classified as SPAM or allowed to get through if it had SPAM content, etc. In order to troubleshoot an issue with a specific message we always ask for **SMTP** headers. The following blog post will help you find them in Outlook Web App, Outlook 2013 and Outlook 2016. ### Outlook Web App **From the message listing, right click on the message and select "View Message Details":**[![](https://storage.services.exchangedefender.network/exchangedefender-blog/blog/2018/09/2018-09-07_10-36-15.png)](https://storage.services.exchangedefender.network/exchangedefender-blog/blog/2018/09/2018-09-07_10-36-15.png) **You will see Message details screen. Copy and paste it in the ticket and we can help you with the rest.** [![](https://storage.services.exchangedefender.network/exchangedefender-blog/blog/2018/09/2018-09-07_10-36-21.png)](https://storage.services.exchangedefender.network/exchangedefender-blog/blog/2018/09/2018-09-07_10-36-21.png) ### **Outlook 2013 / Outlook 2016** **From the message listing double click on the message so it pops up in it's own Outlook window.** [![](https://storage.services.exchangedefender.network/exchangedefender-blog/blog/2018/09/2018-09-07_10-52-54.png)](https://storage.services.exchangedefender.network/exchangedefender-blog/blog/2018/09/2018-09-07_10-52-54.png) **Then click on File and you will be shown the message file options:** [![](https://storage.services.exchangedefender.network/exchangedefender-blog/blog/2018/09/2018-09-07_10-53-04-1024x609.png)](https://storage.services.exchangedefender.network/exchangedefender-blog/blog/2018/09/2018-09-07_10-53-04.png) **Click on Properties and you will see the SMTP headers. Copy and paste it in the ticket and we can help you with the rest.** [![](https://storage.services.exchangedefender.network/exchangedefender-blog/blog/2018/09/2018-09-07_10-53-11.png)](https://storage.services.exchangedefender.network/exchangedefender-blog/blog/2018/09/2018-09-07_10-53-11.png) **Important: Please copy and paste the contents of the screen into our support ticket instead of taking a screenshot. Sometimes the SMTP headers contain characters that are very similar (qf9mfIlI1IlI) and it can take a lot longer to locate the message rather than having a specific text search.** **What happens next is that our team is able to locate the specific message in our database and then with that data do further analysis using the node that processed the message and look at all the logs generated by hundreds of different services that are analyzing every message for dangerous content.** [ Previous post Partner to Retail: Automating the Service Transfer Process August 31, 2018 ](https://www-preview.exchangedefender.com/blog/2018/08/partner-to-retail-automating-the-service-transfer-process) [ Next post ExchangeDefender Corporate Encryption: New Features September 10, 2018 ](https://www-preview.exchangedefender.com/blog/2018/09/exchangedefender-corporate-encryption-new-features) Related Posts ------------- [ ![](https://storage.services.exchangedefender.network/exchangedefender-blog/blog/2026/04/xd10.png) 2 Apr ](https://www-preview.exchangedefender.com/blog/2026/04/announcing-exchangedefender-10)### [Announcing ExchangeDefender 10](https://www-preview.exchangedefender.com/blog/2026/04/announcing-exchangedefender-10) [Read more: Announcing ExchangeDefender 10](https://www-preview.exchangedefender.com/blog/2026/04/announcing-exchangedefender-10) [ ![](https://storage.services.exchangedefender.network/exchangedefender-blog/blog/2025/10/what-is-a-watering-hole.png) 22 Oct ](https://www-preview.exchangedefender.com/blog/2025/10/what-is-a-watering-hole-attack-and-why-you-should-care)### [What Is a Watering Hole Attack (and Why You Should Care)](https://www-preview.exchangedefender.com/blog/2025/10/what-is-a-watering-hole-attack-and-why-you-should-care) [Read more: What Is a Watering Hole Attack (and Why You Should Care)](https://www-preview.exchangedefender.com/blog/2025/10/what-is-a-watering-hole-attack-and-why-you-should-care) [ ![](https://storage.services.exchangedefender.network/exchangedefender-blog/blog/2025/09/Top-7-IT-Solutions-Every-Small-Business-Needs-in-2025.jpg) 30 Sep ](https://www-preview.exchangedefender.com/blog/2025/09/top-7-it-solutions-every-small-business-needs-in-2025)### [Top 7 IT Solutions Every Small Business Needs in 2025](https://www-preview.exchangedefender.com/blog/2025/09/top-7-it-solutions-every-small-business-needs-in-2025) [Read more: Top 7 IT Solutions Every Small Business Needs in 2025](https://www-preview.exchangedefender.com/blog/2025/09/top-7-it-solutions-every-small-business-needs-in-2025) Search the blog Search Recent Posts ------------ - [ExchangeDefender New UI is Live](https://www-preview.exchangedefender.com/blog/2026/05/exchangedefender-new-ui-is-live) - [Announcing ExchangeDefender 10](https://www-preview.exchangedefender.com/blog/2026/04/announcing-exchangedefender-10) - [Merry Christmas](https://www-preview.exchangedefender.com/blog/2025/12/merry-christmas) - [Why IoT Devices Are a Hidden Security Risk for Your Business](https://www-preview.exchangedefender.com/blog/2025/11/why-iot-devices-are-a-hidden-security-risk-for-your-business) - [Top 5 IT Problems Small Businesses Face in 2025 — and How to Fix Them](https://www-preview.exchangedefender.com/blog/2025/10/top-5-it-problems-small-businesses-face-in-2025-and-how-to-fix-them) Categories ---------- - [Archiving](https://www-preview.exchangedefender.com/blog?category=archiving) (21) - [Business Continuity](https://www-preview.exchangedefender.com/blog?category=business-continuity) (13) - [Compliance](https://www-preview.exchangedefender.com/blog?category=compliance) (8) - 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