{"id":23544,"date":"2025-11-14T14:41:25","date_gmt":"2025-11-14T14:41:25","guid":{"rendered":"https:\/\/suresms.com\/?page_id=23544"},"modified":"2025-11-14T14:47:30","modified_gmt":"2025-11-14T14:47:30","slug":"account-security","status":"publish","type":"page","link":"https:\/\/suresms.com\/en\/docs\/account\/kontosikkerhed\/","title":{"rendered":"Account security"},"content":{"rendered":"<!-- Flexy Breadcrumb -->\r\n\t\t\t<div class=\"fbc fbc-page\">\r\n\r\n\t\t\t\t<!-- Breadcrumb wrapper -->\r\n\t\t\t\t<div class=\"fbc-wrap\">\r\n\r\n\t\t\t\t\t<!-- Ordered list-->\r\n\t\t\t\t\t<ol class=\"fbc-items\" itemscope itemtype=\"https:\/\/schema.org\/BreadcrumbList\">\r\n\t\t\t\t\t\t            <li itemprop=\"itemListElement\" itemscope itemtype=\"https:\/\/schema.org\/ListItem\">\r\n                <span itemprop=\"name\">\r\n                    <!-- Home Link -->\r\n                    <a itemprop=\"item\" href=\"https:\/\/suresms.com\/en\/\">\r\n                    \r\n                                                    <i class=\"fa fa-home\" aria-hidden=\"true\"><\/i>Home                    <\/a>\r\n                <\/span>\r\n                <meta itemprop=\"position\" content=\"1\" \/><!-- Meta Position-->\r\n             <\/li><li><span class=\"fbc-separator\">\/<\/span><\/li><li class=\"active\" itemprop=\"itemListElement\" itemscope itemtype=\"https:\/\/schema.org\/ListItem\"><span itemprop=\"name\" title=\"Account security\">Account security<\/span><meta itemprop=\"position\" content=\"2\" \/><\/li>\t\t\t\t\t<\/ol>\r\n\t\t\t\t\t<div class=\"clearfix\"><\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t\t\n<h1>\n\t\t\tAccount security\t<\/h1>\n\tSureSMS includes a number of security features to help you protect your data, avoid misuse and comply with GDPR requirements. On this page, we go through all the security settings you can enable on your account - as well as one additional feature that we can only enable through support.\nAll features can be found below:<br data-start=\"1551\" data-end=\"1554\" \/><strong data-start=\"1554\" data-end=\"1591\">Settings \u2192 Account \u2192 Security<\/strong>\n<h2>\n\t\t\tIP whitelist for Email-to-SMS\t<\/h2>\n\tWhen sending SMS via Email-to-SMS, you can protect your account with IP whitelisting.<br data-start=\"1723\" data-end=\"1726\" \/>This feature ensures that only emails sent from approved IP addresses are accepted and sent as SMS.\n<h3 data-start=\"1826\" data-end=\"1871\"><strong data-start=\"1830\" data-end=\"1871\">When should you use IP whitelisting?<\/strong><\/h3>\n<ul data-start=\"1872\" data-end=\"2067\">\n<li data-start=\"1872\" data-end=\"1926\">\nIf you are sending from <strong data-start=\"1893\" data-end=\"1924\">Own on-premise SMTP server<\/strong>\n<\/li>\n<li data-start=\"1927\" data-end=\"1992\">\nIf your company wants to <strong data-start=\"1956\" data-end=\"1976\">extra security<\/strong> on dispatch\n<\/li>\n<li data-start=\"1993\" data-end=\"2067\">\nIf you want to ensure that only emails from your internal systems can send SMS\n<\/li>\n<\/ul>\nMost cloud-based email providers reuse IPs across many customers, so in most cases we recommend sending via Email-to-SMS with <strong data-start=\"2223\" data-end=\"2256\">API key in the sender address<\/strong> (format: <em data-start=\"2266\" data-end=\"2296\">phone number.api-key.APIKEY<\/em>).\nBut if you have full control over your own mail server, whitelisting is a powerful solution.\n\t\t\t\t\t<video src=\"https:\/\/suresms.com\/wp-content\/uploads\/2025\/11\/OK - Dokumentation - Konto - Sikkerhed.mp4\" alt=\"hosted-video-thumbnail\"><\/video>\n\t\t<h2>\n\t\t\tScramble messages after X minutes\t<\/h2>\n\tFor GDPR compliance, SureSMS allows you to <strong data-start=\"2489\" data-end=\"2501\">scramble<\/strong> messages after a number of minutes. The default value is <strong data-start=\"2555\" data-end=\"2569\">0 minutes<\/strong>, which means messages are never scrambled.\n<h3 data-start=\"2619\" data-end=\"2667\"><strong data-start=\"2623\" data-end=\"2667\">What does it mean to scramble messages?<\/strong><\/h3>\nWhen a message is scrambled:\n<ul data-start=\"2694\" data-end=\"2897\">\n<li data-start=\"2694\" data-end=\"2757\">\nThe middle four digits of the phone number are replaced with <code data-start=\"2752\" data-end=\"2755\">#<\/code>\n<\/li>\n<li data-start=\"2758\" data-end=\"2807\">\nThe entire message content is overwritten with <code data-start=\"2797\" data-end=\"2805\">******<\/code>\n<\/li>\n<li data-start=\"2808\" data-end=\"2897\">\nYou can still see, <em data-start=\"2828\" data-end=\"2832\">that<\/em> The message is sent - but not to whom or what was sent\n<\/li>\n<\/ul>\nThis provides better data protection while still allowing us to document SMS usage if you ever doubt the number of messages sent.\n<h3 data-start=\"3049\" data-end=\"3110\"><strong data-start=\"3053\" data-end=\"3110\">Important to know - telecom operators store messages themselves<\/strong><\/h3>\nEven if SureSMS scrambles after, say, 10 minutes, the message is still with the operator for up to <strong data-start=\"3209\" data-end=\"3221\">72 hours<\/strong>, if the phone is switched off or without coverage. This is standard across the SMS infrastructure and not something SMS gateways can change.\n<h2>\n\t\t\tBlock sending to selected countries\t<\/h2>\n\tTo avoid mis-sending or misuse, you can choose exactly which countries can receive SMS messages from your account.\n<h3 data-start=\"3519\" data-end=\"3552\"><strong data-start=\"3523\" data-end=\"3552\">Why is this important?<\/strong><\/h3>\nRemote systems can sometimes send SMS messages without the correct country code.<br data-start=\"3623\" data-end=\"3626\" \/>Example:<br data-start=\"3635\" data-end=\"3638\" \/>A number starting with <strong data-start=\"3664\" data-end=\"3670\">21<\/strong> is in many cases interpreted as <strong data-start=\"3706\" data-end=\"3718\">Algeria<\/strong>.\nBy blocking all countries except the ones you want, you avoid:\n<ul data-start=\"3778\" data-end=\"3841\">\n<li data-start=\"3778\" data-end=\"3800\">\nAccidental traffic,\n<\/li>\n<li data-start=\"3801\" data-end=\"3818\">\nFake numbers,\n<\/li>\n<li data-start=\"3819\" data-end=\"3841\">\nunnecessary taxing.\n<\/li>\n<\/ul>\nIf a message tries to send to a blocked country, we stop it - and you don't pay for the attempt.\n<h2>\n\t\t\tAutomatic spam filter (can only be enabled\/disabled via support)\t<\/h2>\n\tSureSMS has a built-in spam filter to prevent accidental duplicate sending:\n<ul data-start=\"4110\" data-end=\"4296\">\n<li data-start=\"4110\" data-end=\"4213\">\nIf <strong data-start=\"4117\" data-end=\"4133\">Same message<\/strong> to <strong data-start=\"4138\" data-end=\"4156\">same recipient<\/strong> is sent within <strong data-start=\"4174\" data-end=\"4189\">10 minutes<\/strong>, No. 2 is rejected.\n<\/li>\n<li data-start=\"4214\" data-end=\"4296\">\nThis prevents the recipient from thinking something is wrong or feeling spammed.\n<\/li>\n<\/ul>\n<h3 data-start=\"4298\" data-end=\"4339\"><strong data-start=\"4302\" data-end=\"4339\">When do we turn off the spam filter?<\/strong><\/h3>\nSome systems - especially IOT devices - may require the same SMS to be sent multiple times in quick succession.\nExamples:\n<ul data-start=\"4455\" data-end=\"4530\">\n<li data-start=\"4455\" data-end=\"4469\">\nwater meters\n<\/li>\n<li data-start=\"4470\" data-end=\"4485\">\nheat meters\n<\/li>\n<li data-start=\"4486\" data-end=\"4506\">\ntechnical alarms\n<\/li>\n<li data-start=\"4507\" data-end=\"4530\">\nindustrial sensors\n<\/li>\n<\/ul>\nIn these cases, our support can disable the spam filter for your account.\n<h2>\n\t\t\tSummary: Your security options in SureSMS\t<\/h2>\n<table data-start=\"4667\" data-end=\"5102\">\n<thead data-start=\"4667\" data-end=\"4718\">\n<tr data-start=\"4667\" data-end=\"4718\">\n<th data-start=\"4667\" data-end=\"4678\" data-col-size=\"sm\">Functionality<\/th>\n<th data-start=\"4678\" data-end=\"4693\" data-col-size=\"md\">What it does<\/th>\n<th data-start=\"4693\" data-end=\"4718\" data-col-size=\"sm\">Where to activate it<\/th>\n<\/tr>\n<\/thead>\n<tbody data-start=\"4771\" data-end=\"5102\">\n<tr data-start=\"4771\" data-end=\"4845\">\n<td data-start=\"4771\" data-end=\"4790\" data-col-size=\"sm\"><strong data-start=\"4773\" data-end=\"4789\">IP whitelist<\/strong><\/td>\n<td data-start=\"4790\" data-end=\"4824\" data-col-size=\"md\">Secures Email-to-SMS against misuse<\/td>\n<td data-start=\"4824\" data-end=\"4845\" data-col-size=\"sm\">Account \u2192 Security<\/td>\n<\/tr>\n<tr data-start=\"4846\" data-end=\"4935\">\n<td data-start=\"4846\" data-end=\"4870\" data-col-size=\"sm\"><strong data-start=\"4848\" data-end=\"4869\">Scramble messages<\/strong><\/td>\n<td data-start=\"4870\" data-end=\"4914\" data-col-size=\"md\">Mask numbers &amp; content after X minutes<\/td>\n<td data-start=\"4914\" data-end=\"4935\" data-col-size=\"sm\">Account \u2192 Security<\/td>\n<\/tr>\n<tr data-start=\"4936\" data-end=\"5023\">\n<td data-start=\"4936\" data-end=\"4957\" data-col-size=\"sm\"><strong data-start=\"4938\" data-end=\"4956\">Country blocking<\/strong><\/td>\n<td data-start=\"4957\" data-end=\"5002\" data-col-size=\"md\">Prevents sending to unwanted destinations<\/td>\n<td data-start=\"5002\" data-end=\"5023\" data-col-size=\"sm\">Account \u2192 Security<\/td>\n<\/tr>\n<tr data-start=\"5024\" data-end=\"5102\">\n<td data-start=\"5024\" data-end=\"5041\" data-col-size=\"sm\"><strong data-start=\"5026\" data-end=\"5040\">Spam filter<\/strong><\/td>\n<td data-start=\"5041\" data-end=\"5083\" data-col-size=\"md\">Stops duplicates within 10 minutes<\/td>\n<td data-start=\"5083\" data-end=\"5102\" data-col-size=\"sm\">Contact support<\/td>\n<\/tr>\n<\/tbody>\n<\/table>","protected":false},"excerpt":{"rendered":"<p>Account security SureSMS includes a number of security features to help you protect your data, avoid misuse and comply with GDPR requirements. On this page, we go through all the security settings you can enable on your account - as well as one additional feature that we can only enable through support. All features can be found under: Settings \u2192 Account \u2192 ... <a title=\"Account security\" class=\"read-more\" href=\"https:\/\/suresms.com\/en\/docs\/account\/kontosikkerhed\/\" aria-label=\"Read more about Account security\">Read more<\/a><\/p>","protected":false},"author":1,"featured_media":0,"parent":18156,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_fl_builder_enabled":"1","_fl_builder_data":null,"_fl_builder_draft":null,"_fl_builder_data_settings":null,"_fl_builder_css":"","_fl_builder_css_version":"","_fl_builder_js":"","footnotes":""},"categories":[],"tags":[],"class_list":["post-23544","page","type-page","status-publish"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.3 (Yoast SEO v27.3) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\r\n<title>Konto sikkerhed -<\/title>\r\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\r\n<link rel=\"canonical\" href=\"https:\/\/suresms.com\/en\/docs\/account\/account-security\/\" \/>\r\n<meta property=\"og:locale\" content=\"en_US\" \/>\r\n<meta property=\"og:type\" content=\"article\" \/>\r\n<meta property=\"og:title\" content=\"Konto sikkerhed\" \/>\r\n<meta property=\"og:description\" content=\"Kontosikkerhed SureSMS indeholder en r\u00e6kke sikkerhedsfunktioner, som hj\u00e6lper dig med at beskytte dine data, undg\u00e5 misbrug og leve op til GDPR-krav. P\u00e5 denne side gennemg\u00e5r vi alle de sikkerhedsindstillinger, du kan sl\u00e5 til p\u00e5 din konto &#8211; samt \u00e9n ekstra funktion, som vi kun kan aktivere via supporten. Alle funktioner findes under:Indstillinger \u2192 Konto \u2192 ... 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