{"id":30551,"date":"2026-11-09T19:11:37","date_gmt":"2026-11-09T18:11:37","guid":{"rendered":"https:\/\/www.e-signature.eu\/?p=30551"},"modified":"2026-11-09T19:13:07","modified_gmt":"2026-11-09T18:13:07","slug":"registered-electronic-mail-itsme-signs-the-acknowledgement-of-receipt","status":"publish","type":"post","link":"https:\/\/www.e-signature.eu\/en\/registered-electronic-mail-itsme-signs-the-acknowledgement-of-receipt\/","title":{"rendered":"Registered electronic mail: itsme\u00ae signs the acknowledgement of receipt"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"30551\" class=\"elementor elementor-30551 elementor-30549\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-b709280 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"b709280\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-70c8ab1\" data-id=\"70c8ab1\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-e460d24 elementor-widget elementor-widget-text-editor\" data-id=\"e460d24\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<style>\/* === BASE STYLES === *\/ #ai-header { background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); 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border: 2px solid #667eea; } .compare-card h4 { margin: 0 0 12px 0; font-size: 1em; } .compare-card.eidas1 h4 { color: #555; } .compare-card.eidas2 h4 { color: #667eea; } .compare-card ul { margin: 0; padding-left: 18px; } .compare-card ul li { font-size: 0.92em; line-height: 1.7; color: #444; } .hierarchy-table { width: 100%; border-collapse: collapse; margin: 20px 0; font-size: 0.93em; } .hierarchy-table th { background: #667eea; color: white; padding: 11px 15px; text-align: left; font-weight: 600; } .hierarchy-table td { padding: 11px 15px; border-bottom: 1px solid #e8e8e8; vertical-align: top; color: #333; line-height: 1.55; } .hierarchy-table tr:nth-child(even) td { background: #f8f9fa; } .hierarchy-table .qes-row td { background: #e8f5e9 !important; } .hierarchy-table .aes-row td { background: #fff3e0 !important; } .hierarchy-table .ses-row td { background: #fce4ec !important; } \/* === ARTICLE-SPECIFIC STYLES === *\/ @media (max-width: 680px) { .two-col-grid { display: block !important; } .two-col-grid > div { margin-bottom: 16px; } }<\/style>\n<div class=\"container\">\n<header id=\"ai-header\">\n<h1><span style=\"color:#ffffff;\">Registered electronic mail: itsme\u00ae signs the acknowledgement of receipt<\/span><\/h1>\n<p class=\"lead-paragraph\">With e-signature.eu&#8217;s registered electronic mail, the document is cryptographically protected and the recipient signs the acknowledgement of receipt with itsme\u00ae before accessing it. The sender gets formal proof of the content sent, timestamped and tied to a verified identity.<\/p>\n<\/header>\n<div class=\"content-section\">\n<h2>A registered mail is there to prove, not just to send<\/h2>\n<p>When you send a registered mail, you want to be able to show three things in a dispute: <strong>what was sent<\/strong> (and that the document has not been altered since), <strong>when<\/strong> it was sent and received, and <strong>who<\/strong> received it.<\/p>\n<p>Paper registered mail answers this with a postal receipt and a signed acknowledgement of receipt. Registered electronic mail takes the same principle into digital form, with no trip to the post office, and goes further on one essential point: <strong>proof of the content<\/strong>.<\/p>\n<p>With paper registered mail, the document placed in the envelope is not validated in any way: nothing formally proves what it contained. With e-signature.eu&#8217;s registered electronic mail, the document you send is cryptographically protected from the moment you upload it. Its fingerprint (hash) and qualified timestamp formally prove what was sent, and any later change would be detectable.<\/p>\n<div class=\"two-col-grid\" style=\"display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin: 25px 0;\">\n<div class=\"sector-card\"><h4>\u2709\ufe0f Paper registered mail<\/h4><ul><li>Postal receipt: proof that the item was sent<\/li><li>Envelope contents not validated: nothing formally proves what it contained<\/li><li>Acknowledgement of receipt signed on delivery<\/li><\/ul><\/div>\n<div class=\"sector-card\"><h4>\ud83d\udd10 e-signature.eu registered electronic mail<\/h4><ul><li>Document cryptographically protected from upload (hash and qualified timestamp)<\/li><li>Formal proof of what was sent: any change would be detectable<\/li><li>Acknowledgement of receipt signed with itsme\u00ae, which carries the document&#8217;s hash<\/li><\/ul><\/div>\n<\/div>\n<div class=\"callout-box\">\n<h4>\ud83d\udccb What the eIDAS Regulation says<\/h4>\n<p>Article 43.1 of the eIDAS Regulation sets the principle: <strong>an electronic registered delivery service cannot be denied legal effect solely because it is in electronic form<\/strong>. For the proof to hold, the data transmitted must be intact, timestamped and traceable.<\/p>\n<\/div>\n<p>A plain email with a read receipt does not offer that guarantee: the recipient can switch the receipt off, nothing proves who clicked, and nothing shows afterwards that the attachment was not altered.<\/p>\n<\/div>\n<div class=\"content-section\">\n<h2>Why itsme\u00ae changes the value of the acknowledgement of receipt<\/h2>\n<p>Proving that a document reached an email address is weaker than proving that an identified person acknowledged receipt. That is where itsme\u00ae comes in.<\/p>\n<p>In <a href=\"https:\/\/www.e-signature.eu\/en\/eidas-registered-electronic-mail\/\">e-signature.eu&#8217;s registered electronic mail<\/a>, the recipient signs the acknowledgement of receipt with itsme\u00ae, the digital identity app they already use to access their bank or public services. Their identity is verified at the moment of signing. itsme\u00ae is a qualified trust service provider under eIDAS, available in 32 countries.<\/p>\n<div class=\"success-box\">\n<h4>\u2705 What the sender gets<\/h4>\n<p>An electronically signed acknowledgement of receipt, qualified-timestamped and <strong>tied to a verified identity<\/strong>, not just to an email address.<\/p>\n<\/div>\n<\/div>\n<div class=\"content-section\">\n<h2>The 4-step process, from the sender&#8217;s side<\/h2>\n<div style=\"margin: 25px 0;\">\n<div style=\"display: flex; gap: 18px; margin-bottom: 22px; align-items: flex-start;\">\n<div style=\"width: 40px; height: 40px; border-radius: 50%; background: linear-gradient(135deg,#667eea,#764ba2); color: #ffffff; font-weight: bold; font-size: 1em; display: flex; align-items: center; justify-content: center; flex-shrink: 0;\">1<\/div>\n<div style=\"flex: 1; padding-top: 6px;\"><strong style=\"color: #333; display: block; margin-bottom: 4px; font-size: 1em;\">You prepare the registered mail<\/strong><span style=\"display: block; font-size: 0.93em; color: #555; line-height: 1.65;\">On your first send, you verify your own email address: it is the one that will appear as the sender. You then upload the document and enter the recipient&#8217;s address. The document is immediately protected by a qualified electronic timestamp, and its cryptographic fingerprint (hash) is included in the acknowledgement of receipt that the recipient will have to sign.<\/span><\/div>\n<\/div>\n<div style=\"display: flex; gap: 18px; margin-bottom: 22px; align-items: flex-start;\">\n<div style=\"width: 40px; height: 40px; border-radius: 50%; background: linear-gradient(135deg,#667eea,#764ba2); color: #ffffff; font-weight: bold; font-size: 1em; display: flex; align-items: center; justify-content: center; flex-shrink: 0;\">2<\/div>\n<div style=\"flex: 1; padding-top: 6px;\"><strong style=\"color: #333; display: block; margin-bottom: 4px; font-size: 1em;\">The recipient signs the acknowledgement of receipt with itsme\u00ae<\/strong><span style=\"display: block; font-size: 0.93em; color: #555; line-height: 1.65;\">They receive an email invitation and sign the acknowledgement in the itsme\u00ae app. Their identity is verified, and the signature is applied and qualified-timestamped, before the document is delivered to them.<\/span><\/div>\n<\/div>\n<div style=\"display: flex; gap: 18px; margin-bottom: 22px; align-items: flex-start;\">\n<div style=\"width: 40px; height: 40px; border-radius: 50%; background: linear-gradient(135deg,#667eea,#764ba2); color: #ffffff; font-weight: bold; font-size: 1em; display: flex; align-items: center; justify-content: center; flex-shrink: 0;\">3<\/div>\n<div style=\"flex: 1; padding-top: 6px;\"><strong style=\"color: #333; display: block; margin-bottom: 4px; font-size: 1em;\">The document is delivered<\/strong><span style=\"display: block; font-size: 0.93em; color: #555; line-height: 1.65;\">Once the acknowledgement is signed, the recipient accesses the content of the registered mail. You are notified immediately.<\/span><\/div>\n<\/div>\n<div style=\"display: flex; gap: 18px; margin-bottom: 22px; align-items: flex-start;\">\n<div style=\"width: 40px; height: 40px; border-radius: 50%; background: linear-gradient(135deg,#667eea,#764ba2); color: #ffffff; font-weight: bold; font-size: 1em; display: flex; align-items: center; justify-content: center; flex-shrink: 0;\">4<\/div>\n<div style=\"flex: 1; padding-top: 6px;\"><strong style=\"color: #333; display: block; margin-bottom: 4px; font-size: 1em;\">You get the proof<\/strong><span style=\"display: block; font-size: 0.93em; color: #555; line-height: 1.65;\">The signed acknowledgement of receipt and the qualified timestamp are available in your dashboard, with a full audit trail recording every step of the exchange.<\/span><\/div>\n<\/div>\n<\/div>\n<div class=\"callout-box\">\n<h4>\ud83d\udd01 The same logic as postal registered mail<\/h4>\n<p>As with postal registered mail, the recipient first signs the acknowledgement of receipt and only then gets the letter. With e-signature.eu, proof of receipt is therefore secured before they even read the document, and the signed acknowledgement carries the document&#8217;s fingerprint (hash): it is formally tied to the content that was sent.<\/p>\n<\/div>\n<\/div>\n<div class=\"content-section\">\n<h2>What makes the proof reliable<\/h2>\n<p>Whichever service you choose, four elements determine how solid a registered electronic mail is. Here is how they appear in the e-signature.eu process with itsme\u00ae.<\/p>\n<div class=\"two-col-grid\" style=\"display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin: 25px 0;\">\n<div class=\"sector-card\"><h4>\ud83d\udd12 Content integrity<\/h4><p style=\"font-size: 0.91em; line-height: 1.65; color: #444; margin: 0;\">The document is cryptographically protected: its fingerprint (hash) is calculated at sending and included in the acknowledgement of receipt. It formally proves what was sent, which a paper envelope cannot do. Any later change to the file would be detectable.<\/p><\/div>\n<div class=\"sector-card\"><h4>\ud83d\udd52 Certain date<\/h4><p style=\"font-size: 0.91em; line-height: 1.65; color: #444; margin: 0;\">A qualified electronic timestamp protects the document from the moment it is uploaded, and a second one timestamps the signing of the acknowledgement.<\/p><\/div>\n<div class=\"sector-card\"><h4>\ud83e\udeaa Recipient identity<\/h4><p style=\"font-size: 0.91em; line-height: 1.65; color: #444; margin: 0;\">By signing with itsme\u00ae, the recipient acknowledges receipt with a verified identity, not with a simple click on a link.<\/p><\/div>\n<div class=\"sector-card\"><h4>\ud83d\udcd1 Audit trail<\/h4><p style=\"font-size: 0.91em; line-height: 1.65; color: #444; margin: 0;\">A full history of the steps (sending, signing of the acknowledgement, delivery of the document) remains available in your dashboard.<\/p><\/div>\n<\/div>\n<\/div>\n<div class=\"content-section\">\n<h2>Who uses it, and for what?<\/h2>\n<p>Registered mail is not a niche need. It comes up regularly for freelancers and SMEs, liberal professions and private individuals.<\/p>\n<div class=\"two-col-grid\" style=\"display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 18px; margin: 25px 0;\">\n<div class=\"sector-card\"><h4>\ud83c\udfe2 Freelancers &amp; SMEs<\/h4><ul><li>Formal notice to a client or supplier<\/li><li>HR notification (warning, dismissal)<\/li><li>Termination of a commercial contract<\/li><li>Convening a general assembly<\/li><\/ul><\/div>\n<div class=\"sector-card\"><h4>\u2696\ufe0f Liberal professions<\/h4><ul><li>Lawyers: notifications and formal notices<\/li><li>Accountants: transmitting official documents<\/li><li>Estate agents: lease terminations, end of tenancy<\/li><\/ul><\/div>\n<div class=\"sector-card\"><h4>\ud83c\udfe0 Private individuals<\/h4><ul><li>Terminating a lease or a subscription<\/li><li>Complaint to an insurer<\/li><li>Contesting an invoice<\/li><li>Formal notice to a neighbour or a contractor<\/li><\/ul><\/div>\n<\/div>\n<\/div>\n<div class=\"content-section\">\n<h2>No subscription, with the same credits as your signatures<\/h2>\n<p>e-signature.eu runs on prepaid credits, with no subscription and no commitment. They are <strong>the same credits, at the same rate<\/strong>, as those used for your signature requests: no separate package to buy to send a registered mail.<\/p>\n<div class=\"success-box\">\n<h4>\ud83d\udca1 How much does a registered mail cost?<\/h4>\n<p>A registered mail whose acknowledgement of receipt is signed with itsme\u00ae uses <strong>1 credit<\/strong>, i.e. <strong>\u20ac4.95 excl. VAT<\/strong> at the standard rate. The price per credit is degressive depending on the volume purchased. Whether you send one registered mail a year or several a month, you only pay for what you use.<\/p>\n<\/div>\n<\/div>\n<div class=\"content-section\">\n<h2>A note on the legal level<\/h2>\n<div class=\"warning-box\">\n<h4>\u26a0\ufe0f Qualified components, but not a qualified service<\/h4>\n<p>e-signature.eu&#8217;s registered electronic mail relies on qualified eIDAS components (Articles 41 and 43): a qualified electronic timestamp and an electronically signed acknowledgement of receipt. It is not a qualified electronic registered delivery service within the meaning of Article 44.<\/p>\n<p>For the vast majority of professional and personal uses, this distinction has no practical impact. A few specific national provisions may nevertheless require a qualified service: if that applies to your situation, check the applicable rules before sending.<\/p>\n<\/div>\n<\/div>\n<div class=\"content-section\">\n<h2>Before you send: three checks<\/h2>\n<div class=\"callout-box\">\n<h4>\u2714 Checklist<\/h4>\n<ul>\n<li><strong>Is a delivery method required?<\/strong> Check whether the applicable rules or your contract prescribe one.<\/li>\n<li><strong>Is the email address the right one?<\/strong> Use an address the recipient actually uses, ideally one they gave you for this kind of correspondence.<\/li>\n<li><strong>Will you be able to find the proof later?<\/strong> Download the signed acknowledgement of receipt and the audit trail, and keep them with the case file.<\/li>\n<\/ul>\n<\/div>\n<p>For a complementary analysis of what a registered electronic mail proves, you can read the article published by itsme\u00ae: <a href=\"https:\/\/www.itsme-id.com\/business\/blog\/registered-electronic-mail-what-it-is-what-it-proves-and-when-to-use-it\">Registered electronic mail: what it proves, and when to use it<\/a>.<\/p>\n<\/div>\n<div class=\"content-section\">\n<h2>Key takeaways<\/h2>\n<ul class=\"key-points\">\n<li>The recipient signs the acknowledgement of receipt with itsme\u00ae before accessing the document<\/li>\n<li>The document is cryptographically protected from the moment of sending: formal proof of its content, which paper registered mail cannot provide<\/li>\n<li>It is qualified-timestamped and its fingerprint is included in the acknowledgement of receipt<\/li>\n<li>A full audit trail is available in your dashboard<\/li>\n<li>No subscription: 1 credit (\u20ac4.95 excl. VAT, degressive) per registered mail with itsme\u00ae, using the same credits as for your signatures<\/li>\n<li>Qualified eIDAS components (Articles 41 and 43), without being a qualified service within the meaning of Article 44<\/li>\n<li>Service available in French, Dutch, English, German and Spanish<\/li>\n<\/ul>\n<\/div>\n<div class=\"cta-section\">\n<h3>Send your first registered electronic mail<\/h3>\n<p>No subscription, with the same credits as your electronic signatures.<\/p>\n<a class=\"cta-button\" href=\"https:\/\/www.e-signature.eu\/en\/our-prepaid-credit-packages\/\">View credit pricing \u2192<\/a>\n<\/div>\n<\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Registered electronic mail: itsme\u00ae signs the acknowledgement of receipt With e-signature.eu&#8217;s registered electronic mail, the document is cryptographically protected and&#8230;<\/p>\n","protected":false},"author":3,"featured_media":30557,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"elementor_header_footer","format":"standard","meta":{"_acf_changed":false,"wds_primary_category":108,"footnotes":""},"categories":[108],"tags":[181,174],"class_list":["post-30551","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-itsme-en","tag-productivity"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.e-signature.eu\/en\/wp-json\/wp\/v2\/posts\/30551","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.e-signature.eu\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.e-signature.eu\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.e-signature.eu\/en\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.e-signature.eu\/en\/wp-json\/wp\/v2\/comments?post=30551"}],"version-history":[{"count":5,"href":"https:\/\/www.e-signature.eu\/en\/wp-json\/wp\/v2\/posts\/30551\/revisions"}],"predecessor-version":[{"id":30567,"href":"https:\/\/www.e-signature.eu\/en\/wp-json\/wp\/v2\/posts\/30551\/revisions\/30567"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.e-signature.eu\/en\/wp-json\/wp\/v2\/media\/30557"}],"wp:attachment":[{"href":"https:\/\/www.e-signature.eu\/en\/wp-json\/wp\/v2\/media?parent=30551"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.e-signature.eu\/en\/wp-json\/wp\/v2\/categories?post=30551"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.e-signature.eu\/en\/wp-json\/wp\/v2\/tags?post=30551"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}