--- title: Major European Payment Processor Can't Send Email to... description: Viva.com, a major European payment processor, sends verification emails without a Message-ID header—a basic RFC 5322 recommendation since 2008. Google... canonical: https://daily.dev/posts/major-european-payment-processor-can-t-send-email-to-google-users-0ems4i1wo twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Major European Payment Processor Can't Send Email to Google Users | daily.dev og:description: Viva.com, a major European payment processor, sends verification emails without a Message-ID header—a basic RFC 5322 recommendation since 2008. Google... og:url: https://daily.dev/posts/major-european-payment-processor-can-t-send-email-to-google-users-0ems4i1wo og:image: https://api.daily.dev/og/posts/0EMs4I1wo.png og:image:alt: Major European Payment Processor Can't Send Email to Google Users og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Major European Payment Processor Can't Send Email to Google Users **[Hacker News](https://daily.dev/sources/hn)** · 5 min read · 0 upvotes · 0 comments ## Summary Viva.com, a major European payment processor, sends verification emails without a Message-ID header—a basic RFC 5322 recommendation since 2008. Google Workspace rejects these emails outright, forcing users to switch to personal Gmail addresses. When reported with technical details, support dismissed the issue since the user had worked around it. The incident highlights broader quality issues with European fintech infrastructure compared to alternatives like Stripe, particularly in markets with limited competition and local payment requirements. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Europe's $24 Trillion Breakup With Visa and Mastercard](https://daily.dev/posts/europe-s-24-trillion-breakup-with-visa-and-mastercard-kgdur7axx) · Hacker News · 0 upvotes · 0 comments - [Ask HN: Gmail spam filtering suddenly marking everything as spam?](https://daily.dev/posts/ask-hn-gmail-spam-filtering-suddenly-marking-everything-as-spam--o7ywprwoz) · Hacker News · 0 upvotes · 0 comments - [Streamline User Journeys with Verified Email via Credential Manager](https://daily.dev/posts/streamline-user-journeys-with-verified-email-via-credential-manager-qxsxzc7o2) · Android Developers Blog · 1 upvotes · 0 comments --- Tags: [#fintech](https://daily.dev/tags/fintech) [View this post on daily.dev](https://daily.dev/posts/major-european-payment-processor-can-t-send-email-to-google-users-0ems4i1wo) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Major European Payment Processor Can't Send Email to Google Users","url":"https://daily.dev/posts/major-european-payment-processor-can-t-send-email-to-google-users-0ems4i1wo","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/major-european-payment-processor-can-t-send-email-to-google-users-0ems4i1wo"},"datePublished":"2026-02-12T15:40:06.067Z","dateModified":"2026-02-12T15:40:27.983Z","description":"Viva.com, a major European payment processor, sends verification emails without a Message-ID header—a basic RFC 5322 recommendation since 2008. 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