{"id":2241,"date":"2015-06-01T11:30:42","date_gmt":"2015-06-01T10:30:42","guid":{"rendered":"https:\/\/www.uk-cheapest.co.uk\/support\/?p=2241"},"modified":"2026-08-30T18:34:44","modified_gmt":"2026-08-30T17:34:44","slug":"ports-for-imap-pop-and-smtp-email-services","status":"publish","type":"post","link":"https:\/\/www.uk-cheapest.co.uk\/support\/ports-for-imap-pop-and-smtp-email-services\/","title":{"rendered":"Ports for IMAP, POP and SMTP Email Services"},"content":{"rendered":"\n<div class=\"ukc-email-guide\">\n  <section class=\"ukc-email-hero\" aria-labelledby=\"ukc-email-answer-heading\">\n    <p class=\"ukc-email-kicker\">Secure email settings<\/p>\n    <h2 id=\"ukc-email-answer-heading\">Use IMAP 993, POP3 995 and SMTP 587 for secure email<\/h2>\n    <p class=\"ukc-email-lead\"><strong>Choose IMAP when your phone or computer asks for the account type.<\/strong> For most people, the settings to copy are incoming port 993 with SSL\/TLS and outgoing port 587 with STARTTLS. The tables below include alternatives only when an app specifically asks for them.<\/p>\n\n    <div class=\"ukc-port-summary\" aria-label=\"Recommended secure email ports\">\n      <article>\n        <span>Incoming<\/span>\n        <strong>IMAP 993<\/strong>\n        <small>SSL\/TLS - recommended<\/small>\n      <\/article>\n      <article>\n        <span>Incoming<\/span>\n        <strong>POP3 995<\/strong>\n        <small>SSL\/TLS - alternative<\/small>\n      <\/article>\n      <article>\n        <span>Outgoing<\/span>\n        <strong>SMTP 587<\/strong>\n        <small>STARTTLS - recommended<\/small>\n      <\/article>\n      <article>\n        <span>Outgoing<\/span>\n        <strong>SMTP 465<\/strong>\n        <small>SSL\/TLS - alternative<\/small>\n      <\/article>\n    <\/div>\n\n    <div class=\"ukc-email-alert\">\n      <strong>What do these names mean?<\/strong> IMAP keeps incoming mail in sync across devices. POP3 downloads incoming mail, usually to one device. SMTP sends outgoing mail.\n    <\/div>\n\n    <div class=\"ukc-email-actions\">\n      <a class=\"ukc-email-button\" href=\"#choose-email-service\">Choose the correct service<\/a>\n      <a class=\"ukc-email-text-link\" href=\"#manual-email-settings\">See all port settings<\/a>\n    <\/div>\n  <\/section>\n\n  <nav class=\"ukc-email-on-page\" aria-label=\"On this page\">\n    <strong>On this page<\/strong>\n    <a href=\"#manual-email-settings\">Port table<\/a>\n    <a href=\"#find-server-name\">Server name<\/a>\n    <a href=\"#imap-or-pop\">IMAP or POP3<\/a>\n    <a href=\"#setup-checklist\">Setup checklist<\/a>\n    <a href=\"#email-troubleshooting\">Troubleshooting<\/a>\n  <\/nav>\n\n  <h2 id=\"manual-email-settings\">IMAP, POP3 and SMTP port numbers<\/h2>\n  <p>A port is simply the numbered connection your email app uses. Copy the recommended numbers below. Do not use port 25 in a phone or computer email app.<\/p>\n\n  <div class=\"ukc-email-table-wrap\" role=\"region\" aria-label=\"Email port settings\">\n    <table class=\"ukc-email-table\">\n      <thead>\n        <tr>\n          <th scope=\"col\">Service<\/th>\n          <th scope=\"col\">Purpose<\/th>\n          <th scope=\"col\">Port<\/th>\n          <th scope=\"col\">Security<\/th>\n          <th scope=\"col\">Recommendation<\/th>\n        <\/tr>\n      <\/thead>\n      <tbody>\n        <tr class=\"ukc-email-preferred\">\n          <th scope=\"row\">IMAP<\/th>\n          <td>Receive and synchronise mail<\/td>\n          <td><strong>993<\/strong><\/td>\n          <td>SSL\/TLS<\/td>\n          <td>Recommended for most people<\/td>\n        <\/tr>\n        \n        <tr>\n          <th scope=\"row\">POP3<\/th>\n          <td>Download incoming mail<\/td>\n          <td><strong>995<\/strong><\/td>\n          <td>SSL\/TLS<\/td>\n          <td>Secure POP3 option<\/td>\n        <\/tr>\n        \n        <tr class=\"ukc-email-preferred\">\n          <th scope=\"row\">SMTP<\/th>\n          <td>Send outgoing mail<\/td>\n          <td><strong>587<\/strong><\/td>\n          <td>STARTTLS<\/td>\n          <td>Recommended for sending<\/td>\n        <\/tr>\n        <tr>\n          <th scope=\"row\">SMTP<\/th>\n          <td>Send outgoing mail<\/td>\n          <td><strong>465<\/strong><\/td>\n          <td>SSL\/TLS<\/td>\n          <td>Use when your app requests implicit TLS<\/td>\n        <\/tr>\n      <\/tbody>\n    <\/table>\n  <\/div>\n\n  <aside class=\"ukc-email-note\">\n    <strong>Your app must sign in before it can send.<\/strong> If it asks whether the outgoing server requires authentication, choose Yes and use the username required by your service with the mailbox password.\n  <\/aside>\n\n    <h2 id=\"choose-email-service\">First, identify which UKC email service you have<\/h2>\n  <div class=\"ukc-email-choice\">\n    <article>\n      <p class=\"ukc-email-badge\">Domain add-on<\/p>\n      <h3>Custom Domain Email<\/h3>\n      <p>Use <strong>webmail.ukc.uk<\/strong> for incoming mail, outgoing mail and browser webmail. Email apps use the account username shown in the welcome email; Roundcube webmail uses the full email address.<\/p>\n    <\/article>\n    <article>\n      <p class=\"ukc-email-badge ukc-email-badge-muted\">Plesk service<\/p>\n      <h3>Shared hosting or Business Email Hosting<\/h3>\n      <p>Use the server name printed in your hosting or email welcome message, such as <strong>ukc10.uk<\/strong>. Plesk-hosted mailboxes use the full email address as the username. Do not use webmail.ukc.uk for this type of mailbox.<\/p>\n    <\/article>\n  <\/div>\n<h2 id=\"find-server-name\">Where can I find my server name?<\/h2>\n  <p>If you have shared hosting or Business Email Hosting, the correct server name is in your welcome message and Plesk control panel. Copy it exactly. This avoids security warnings caused by using the wrong name.<\/p>\n\n  <ol class=\"ukc-email-steps\">\n    <li><span>1<\/span><div><strong>Sign in to Plesk<\/strong><p>Open the hosting subscription that contains your mailbox.<\/p><\/div><\/li>\n    <li><span>2<\/span><div><strong>Open Mail Accounts<\/strong><p>Choose the mailbox you want to connect.<\/p><\/div><\/li>\n    <li><span>3<\/span><div><strong>Open Mail Client Setup<\/strong><p>Copy the incoming server, outgoing server and security settings displayed for that mailbox.<\/p><\/div><\/li>\n  <\/ol>\n\n  <p>Your email app may find the settings automatically. Try that first. If it fails, choose manual setup and copy the settings from this page.<\/p>\n\n  <h2 id=\"imap-or-pop\">Should I choose IMAP or POP3?<\/h2>\n\n  <div class=\"ukc-email-choice\">\n    <article>\n      <p class=\"ukc-email-badge\">Recommended<\/p>\n      <h3>Choose IMAP for phones, tablets and multiple computers<\/h3>\n      <p>IMAP keeps messages and folders synchronised with the server. A change made on one device is reflected on the others.<\/p>\n      <ul>\n        <li>Best for multiple devices<\/li>\n        <li>Keeps server folders in sync<\/li>\n        <li>Uses port 993 with SSL\/TLS<\/li>\n      <\/ul>\n    <\/article>\n    <article>\n      <p class=\"ukc-email-badge ukc-email-badge-muted\">Alternative<\/p>\n      <h3>Choose POP3 when you want to download mail<\/h3>\n      <p>POP3 is designed to download messages to an email app. Device behaviour depends on whether the app is configured to leave a copy on the server.<\/p>\n      <ul>\n        <li>Useful for a single main computer<\/li>\n        <li>Can reduce server mailbox usage<\/li>\n        <li>Uses port 995 with SSL\/TLS<\/li>\n      <\/ul>\n    <\/article>\n  <\/div>\n\n  <h2 id=\"setup-checklist\">Email app setup checklist<\/h2>\n\n  <div class=\"ukc-email-checklist\">\n    <article><strong>Account type<\/strong><span>IMAP for synchronisation, or POP3 for download<\/span><\/article>\n    <article><strong>Username<\/strong><span>Custom Domain Email: account username in the welcome email. Plesk-hosted mailbox: full email address.<\/span><\/article>\n    <article><strong>Password<\/strong><span>The password assigned to that mailbox in Plesk<\/span><\/article>\n    <article><strong>Incoming server<\/strong><span>The exact hostname shown by Mail Client Setup<\/span><\/article>\n    <article><strong>Outgoing server<\/strong><span>The exact hostname shown by Mail Client Setup<\/span><\/article>\n    <article><strong>SMTP authentication<\/strong><span>Enabled, using the same mailbox credentials<\/span><\/article>\n    <article><strong>Incoming security<\/strong><span>SSL\/TLS on IMAP 993 or POP3 995<\/span><\/article>\n    <article><strong>Outgoing security<\/strong><span>STARTTLS on SMTP 587, or SSL\/TLS on 465<\/span><\/article>\n  <\/div>\n\n  <h2 id=\"email-client-guides\">Setup guides for popular email applications<\/h2>\n  <div class=\"ukc-email-card-grid\">\n    <article><h3>Microsoft Outlook<\/h3><p>Configure new or classic Outlook with secure UKC IMAP and SMTP settings.<\/p><p><a href=\"https:\/\/www.uk-cheapest.co.uk\/support\/how-to-setup-email-using-microsoft-office-outlook\/\" data-ukc-email-cta=\"setup_guide\" data-ukc-email-destination=\"outlook_setup\">Open the Outlook guide<\/a><\/p><\/article>\n    <article><h3>Apple Mail on Mac<\/h3><p>Add a UKC mailbox and correct incoming or outgoing connection problems.<\/p><p><a href=\"https:\/\/www.uk-cheapest.co.uk\/support\/how-to-setup-email-using-apple-mail\/\" data-ukc-email-cta=\"setup_guide\" data-ukc-email-destination=\"apple_mail_setup\">Open the Apple Mail guide<\/a><\/p><\/article>\n    <article><h3>iPhone and iPad<\/h3><p>Use the current Settings route and verify the primary SMTP server.<\/p><p><a href=\"https:\/\/www.uk-cheapest.co.uk\/support\/how-to-setup-email-on-your-iphone-or-ipad\/\" data-ukc-email-cta=\"setup_guide\" data-ukc-email-destination=\"iphone_mail_setup\">Open the iPhone and iPad guide<\/a><\/p><\/article>\n    <article><h3>Gmail app on Android<\/h3><p>Add the mailbox as a Personal (IMAP) account using Other.<\/p><p><a href=\"https:\/\/www.uk-cheapest.co.uk\/support\/how-to-add-ukc-email-to-gmail-app-on-android\/\" data-ukc-email-cta=\"setup_guide\" data-ukc-email-destination=\"gmail_android_setup\">Open the Gmail Android guide<\/a><\/p><\/article>\n    <article><h3>Mozilla Thunderbird<\/h3><p>Use Manual configuration and verify the separate outgoing server.<\/p><p><a href=\"https:\/\/www.uk-cheapest.co.uk\/support\/how-to-setup-email-using-mozilla-thunderbird\/\" data-ukc-email-cta=\"setup_guide\" data-ukc-email-destination=\"thunderbird_setup\">Open the Thunderbird guide<\/a><\/p><\/article>\n  <\/div>\n\n  <h2 id=\"email-troubleshooting\">Fix common email connection problems<\/h2>\n\n  <div class=\"ukc-email-faq\">\n    <details open>\n      <summary>I can receive email but cannot send it<\/summary>\n      <p>Confirm that the outgoing service is SMTP, authentication is enabled, the username matches the rule for your service and port 587 uses STARTTLS. If your app requests SSL\/TLS rather than STARTTLS, try SMTP port 465.<\/p>\n    <\/details>\n    <details>\n      <summary>I see a certificate or server identity warning<\/summary>\n      <p>Check that the incoming and outgoing server names exactly match the settings shown in Plesk Mail Client Setup. Do not accept an unexpected certificate warning without checking the hostname.<\/p>\n    <\/details>\n    <details>\n      <summary>My password is rejected<\/summary>\n      <p>Use the username required by your service and the password for that mailbox, not necessarily your Plesk account password. Reset the mailbox password in Plesk if required, then update every connected device.<\/p>\n    <\/details>\n    <details>\n      <summary>What is the outgoing IMAP port?<\/summary>\n      <p>IMAP has no outgoing mail port. IMAP receives and synchronises messages. Use SMTP port 587 with STARTTLS, or SMTP port 465 with SSL\/TLS, to send mail.<\/p>\n    <\/details>\n    <details>\n      <summary>Should I use port 25 in Outlook or Apple Mail?<\/summary>\n      <p>No. Port 25 is primarily for mail server delivery and may be blocked by networks. Use authenticated SMTP submission on port 587 or 465.<\/p>\n    <\/details>\n  <\/div>\n\n  <p class=\"ukc-email-source-note\">These settings match the active UKC mail services. Plesk customers can also find the account-specific values in <a href=\"https:\/\/docs.plesk.com\/en-US\/obsidian\/administrator-guide\/65691\/\" rel=\"nofollow noopener\" target=\"_blank\">Plesk Mail Client Setup<\/a>.<\/p>\n\n  <h2 id=\"ukc-email-hosting\">Need an email service for your domain?<\/h2>\n  <p>Choose the service by how you want to work. Product limits and prices can change, so check the Client Area or order page for the current specification and total including VAT before ordering.<\/p>\n  <div class=\"ukc-email-choice\">\n    <article>\n      <p class=\"ukc-email-badge\">One domain mailbox<\/p>\n      <h3>Custom Domain Email<\/h3>\n      <p>Basic includes 1 GB storage. Standard includes 5 GB and spam protection. Pro includes 10 GB and priority support. It runs on webmail.ukc.uk.<\/p>\n      <p><a href=\"https:\/\/billing.uk-cheapest.co.uk\/clientarea.php?action=domains&amp;utm_source=support&amp;utm_medium=guide&amp;utm_campaign=email_ports\">Open My Domains<\/a><\/p>\n    <\/article>\n    <article>\n      <p class=\"ukc-email-badge ukc-email-badge-muted\">Several mailboxes<\/p>\n      <h3>Business Email Hosting<\/h3>\n      <p>A control panel for creating several mailboxes, plus browser webmail, spam controls, forwarding and automatic replies.<\/p>\n      <p><a href=\"https:\/\/billing.uk-cheapest.co.uk\/store\/email-hosting?ukc_ref=support_email_ports_guide&amp;ukc_cta=comparison\" data-ukc-email-cta=\"comparison\" data-ukc-email-destination=\"email_plans\">Compare current email plans<\/a><\/p>\n    <\/article>\n  <\/div>\n\n  <section class=\"ukc-email-final-cta\" aria-labelledby=\"ukc-email-cta-heading\">\n    <div>\n      <p class=\"ukc-email-kicker\">Still unsure?<\/p>\n      <h2 id=\"ukc-email-cta-heading\">Tell us which mailbox you are setting up<\/h2>\n      <p>Include the email application, device, server name and exact error. Never include your password.<\/p>\n    <\/div>\n    <div class=\"ukc-email-final-actions\">\n      <a class=\"ukc-email-button\" href=\"https:\/\/billing.uk-cheapest.co.uk\/submitticket.php\" data-ukc-email-cta=\"support\" data-ukc-email-destination=\"helpdesk\">Get email help<\/a>\n    <\/div>\n  <\/section>\n<\/div>\n\n","protected":false},"excerpt":{"rendered":"<p>Secure email settings Use IMAP 993, POP3 995 and SMTP 587 for secure email Choose IMAP when your phone or computer asks for the account type. For most people, the settings to copy are incoming port 993 with SSL\/TLS and outgoing port 587 with STARTTLS. The tables below include alternatives only when an app specifically &#8230; <a title=\"Ports for IMAP, POP and SMTP Email Services\" class=\"read-more\" href=\"https:\/\/www.uk-cheapest.co.uk\/support\/ports-for-imap-pop-and-smtp-email-services\/\" aria-label=\"Read more about Ports for IMAP, POP and SMTP Email Services\">Read more&#8230;<\/a><\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"generate_page_header":"","footnotes":""},"categories":[16],"tags":[],"class_list":["post-2241","post","type-post","status-publish","format-standard","hentry","category-email"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>IMAP, POP3 and SMTP Ports: Secure Email Settings | UKC<\/title>\n<meta name=\"description\" content=\"Use the correct secure IMAP, POP3 and SMTP ports for UKC email, with 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