{"id":258,"date":"2018-06-20T10:12:27","date_gmt":"2018-06-20T10:12:27","guid":{"rendered":"http:\/\/www.mailsdaddy.com\/blogs\/?p=258"},"modified":"2023-08-06T10:00:38","modified_gmt":"2023-08-06T10:00:38","slug":"increase-mail-attachment-size-office-365","status":"publish","type":"post","link":"https:\/\/www.mailsdaddy.com\/blogs\/increase-mail-attachment-size-office-365\/","title":{"rendered":"Increase Mail Attachment Size in Office 365 Exchange Online"},"content":{"rendered":"<p>The default Office 365 maximum message size for messages is 25MB. Since email text is usually shorter, this setting essentially restricts maximum attachment size. You can change the maximum message size for an individual mailbox<!--more--> with the Office 365 Admin Center or PowerShell.\u00a0Here I have discussed two methods of how to increase mail attachment\u00a0size in Office 365 exchange online, you can use any one of them.<\/p>\n<blockquote><p>Are you looking for Office 365 migration tool to move your on-premise data (IBM Lotus Notes, PST, OST, EML &amp; MBOX, etc.) into Exchange Online cloud platform? If yes, then you may find a suitable program from <strong><a href=\"https:\/\/www.mailsdaddy.com\/products.php\">https:\/\/www.mailsdaddy.com\/products.php<\/a><\/strong><\/p><\/blockquote>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.mailsdaddy.com\/blogs\/increase-mail-attachment-size-office-365\/#Method_1_How_to_set_Office_365_attachment_size_limit_using_a_console\" >Method 1: How to set Office 365 attachment size limit using a console<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.mailsdaddy.com\/blogs\/increase-mail-attachment-size-office-365\/#Method_2_set_recipient_limit_office_365_PowerShell\" >Method 2: set recipient limit office 365 PowerShell<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Method_1_How_to_set_Office_365_attachment_size_limit_using_a_console\"><\/span>Method 1: How to set Office 365 attachment size limit using a console<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><strong>Step 1:<\/strong> First login to your Office 365 admin account &gt;&gt; <strong>Exchange Admin Console<\/strong><\/p>\n<p><strong>Step 2: Navigate to &#8220;R<\/strong><strong>ecipients&#8221; &gt;&gt; Select &#8220;Mailboxes&#8221; &gt; click on the user<\/strong><\/p>\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"alignnone size-full wp-image-3313\" src=\"https:\/\/www.mailsdaddy.com\/blogs\/wp-content\/uploads\/2018\/06\/recipients.png\" alt=\"recipients\" width=\"1600\" height=\"760\" srcset=\"https:\/\/www.mailsdaddy.com\/blogs\/wp-content\/uploads\/2018\/06\/recipients.png 1600w, https:\/\/www.mailsdaddy.com\/blogs\/wp-content\/uploads\/2018\/06\/recipients-300x143.png 300w, https:\/\/www.mailsdaddy.com\/blogs\/wp-content\/uploads\/2018\/06\/recipients-1024x486.png 1024w, https:\/\/www.mailsdaddy.com\/blogs\/wp-content\/uploads\/2018\/06\/recipients-768x365.png 768w, https:\/\/www.mailsdaddy.com\/blogs\/wp-content\/uploads\/2018\/06\/recipients-1536x730.png 1536w\" sizes=\"(max-width: 1600px) 100vw, 1600px\" \/><\/p>\n<p><strong>Step 3: <\/strong>In the open panel<strong> &gt;&gt; <\/strong>Click on<strong> &#8220;Mailbox&#8221; &gt;&gt; <\/strong>hit on<strong> &#8220;Manage message size restriction&#8221;<\/strong><\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-3314\" src=\"https:\/\/www.mailsdaddy.com\/blogs\/wp-content\/uploads\/2018\/06\/mailbox.png\" alt=\"mailbox\" width=\"1600\" height=\"751\" srcset=\"https:\/\/www.mailsdaddy.com\/blogs\/wp-content\/uploads\/2018\/06\/mailbox.png 1600w, https:\/\/www.mailsdaddy.com\/blogs\/wp-content\/uploads\/2018\/06\/mailbox-300x141.png 300w, https:\/\/www.mailsdaddy.com\/blogs\/wp-content\/uploads\/2018\/06\/mailbox-1024x481.png 1024w, https:\/\/www.mailsdaddy.com\/blogs\/wp-content\/uploads\/2018\/06\/mailbox-768x360.png 768w, https:\/\/www.mailsdaddy.com\/blogs\/wp-content\/uploads\/2018\/06\/mailbox-1536x721.png 1536w\" sizes=\"(max-width: 1600px) 100vw, 1600px\" \/><\/p>\n<p><strong>Step 4: <\/strong>When you click a new pop-up will appear on the screen, here you need to type the <strong>size in KB<\/strong>. And hit the &#8220;<strong>Save&#8221; <\/strong>button.<\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-3312\" src=\"https:\/\/www.mailsdaddy.com\/blogs\/wp-content\/uploads\/2018\/06\/modify-in-kb.png\" alt=\"modify-in-kb\" width=\"591\" height=\"757\" srcset=\"https:\/\/www.mailsdaddy.com\/blogs\/wp-content\/uploads\/2018\/06\/modify-in-kb.png 591w, https:\/\/www.mailsdaddy.com\/blogs\/wp-content\/uploads\/2018\/06\/modify-in-kb-234x300.png 234w\" sizes=\"(max-width: 591px) 100vw, 591px\" \/><\/p>\n<p><strong>Note:<\/strong> you can also customize multiple mailbox size restrictions at once.<\/p>\n<p><strong>Enable Multiple Mailbox Size At Once<\/strong><\/p>\n<ul>\n<li>Select All users<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-3326\" src=\"https:\/\/www.mailsdaddy.com\/blogs\/wp-content\/uploads\/2018\/06\/modify-in-bulk22.png\" alt=\"modify-in-bulk22\" width=\"1599\" height=\"757\" srcset=\"https:\/\/www.mailsdaddy.com\/blogs\/wp-content\/uploads\/2018\/06\/modify-in-bulk22.png 1599w, https:\/\/www.mailsdaddy.com\/blogs\/wp-content\/uploads\/2018\/06\/modify-in-bulk22-300x142.png 300w, https:\/\/www.mailsdaddy.com\/blogs\/wp-content\/uploads\/2018\/06\/modify-in-bulk22-1024x485.png 1024w, https:\/\/www.mailsdaddy.com\/blogs\/wp-content\/uploads\/2018\/06\/modify-in-bulk22-768x364.png 768w, https:\/\/www.mailsdaddy.com\/blogs\/wp-content\/uploads\/2018\/06\/modify-in-bulk22-1536x727.png 1536w\" sizes=\"(max-width: 1599px) 100vw, 1599px\" \/><\/p>\n<ul>\n<li>Click on &#8220;<strong>Mailflow setting<\/strong>&#8221; and press &#8220;<strong>Message size restriction<\/strong>&#8220;<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-3325\" src=\"https:\/\/www.mailsdaddy.com\/blogs\/wp-content\/uploads\/2018\/06\/message-size22.png\" alt=\"message-size22\" width=\"1170\" height=\"746\" srcset=\"https:\/\/www.mailsdaddy.com\/blogs\/wp-content\/uploads\/2018\/06\/message-size22.png 1170w, https:\/\/www.mailsdaddy.com\/blogs\/wp-content\/uploads\/2018\/06\/message-size22-300x191.png 300w, https:\/\/www.mailsdaddy.com\/blogs\/wp-content\/uploads\/2018\/06\/message-size22-1024x653.png 1024w, https:\/\/www.mailsdaddy.com\/blogs\/wp-content\/uploads\/2018\/06\/message-size22-768x490.png 768w\" sizes=\"(max-width: 1170px) 100vw, 1170px\" \/><\/p>\n<ul>\n<li><strong>Type<\/strong> the size in KB then <strong>save<\/strong>.<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-3324\" src=\"https:\/\/www.mailsdaddy.com\/blogs\/wp-content\/uploads\/2018\/06\/change-size-in-bulk22.png\" alt=\"change-size-in-bulk22\" width=\"1600\" height=\"758\" srcset=\"https:\/\/www.mailsdaddy.com\/blogs\/wp-content\/uploads\/2018\/06\/change-size-in-bulk22.png 1600w, https:\/\/www.mailsdaddy.com\/blogs\/wp-content\/uploads\/2018\/06\/change-size-in-bulk22-300x142.png 300w, https:\/\/www.mailsdaddy.com\/blogs\/wp-content\/uploads\/2018\/06\/change-size-in-bulk22-1024x485.png 1024w, https:\/\/www.mailsdaddy.com\/blogs\/wp-content\/uploads\/2018\/06\/change-size-in-bulk22-768x364.png 768w, https:\/\/www.mailsdaddy.com\/blogs\/wp-content\/uploads\/2018\/06\/change-size-in-bulk22-1536x728.png 1536w\" sizes=\"(max-width: 1600px) 100vw, 1600px\" \/><\/p>\n<p>To set the maximum size of the message, you can check the below image according to M365 subscription:<\/p>\n<figure id=\"attachment_3311\" aria-describedby=\"caption-attachment-3311\" style=\"width: 764px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-3311 size-full\" src=\"https:\/\/www.mailsdaddy.com\/blogs\/wp-content\/uploads\/2018\/06\/message-limit-office365.png\" alt=\"message-limit-office365\" width=\"764\" height=\"344\" srcset=\"https:\/\/www.mailsdaddy.com\/blogs\/wp-content\/uploads\/2018\/06\/message-limit-office365.png 764w, https:\/\/www.mailsdaddy.com\/blogs\/wp-content\/uploads\/2018\/06\/message-limit-office365-300x135.png 300w\" sizes=\"(max-width: 764px) 100vw, 764px\" \/><figcaption id=\"caption-attachment-3311\" class=\"wp-caption-text\">image source: Microsoft<\/figcaption><\/figure>\n<h2><span class=\"ez-toc-section\" id=\"Method_2_set_recipient_limit_office_365_PowerShell\"><\/span>Method 2: set recipient limit office 365 PowerShell<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>If you have less than 1,000 or more than 1,000 user mailboxes, then you will eventually end up using the Exchange Admin Center User Interface to make changes and also use the PowerShell command.<\/p>\n<p><strong>Step 1:\u00a0<\/strong>First, you need to log in to Office 365 with the help of PowerShell<\/p>\n<p><code>$Cred = Get-Credential<\/code><\/p>\n<p><strong>Step 2:\u00a0<\/strong>Press the enter key and type your office 365 username and password and then type the following commands.<\/p>\n<p><code>$Session=New-PSSession \u2013ConfigurationName Microsoft.Exchange \u2013ConnectionUri https:\/\/ps.outlook.com\/powershell\/ -Credential $Cred \u2013Authentication Basic \u2013AllowRedirection<\/code><\/p>\n<p><code>Import-PSSession $Session<\/code><\/p>\n<p><strong>Step 3:<\/strong> The general commands you can use to customize these settings via remote powerplays include:<\/p>\n<p style=\"text-align: left;\"><b>Update a single mailbox<\/b><\/p>\n<p style=\"text-align: left;\"><code>Set-Mailbox \u2013Identity sale@domain.com \u2013MaxSendSize 75MB \u2013 MaxReceiveSize 75MB<\/code><\/p>\n<ul>\n<li style=\"text-align: left;\"><strong>Update multiple mailboxes <\/strong><\/li>\n<\/ul>\n<p style=\"text-align: left;\"><code>(\u201csale\u201d,\u201dsale2\u201d,\u201dsale3\u201d)|%{Set-Mailbox \u2013Identity $_-MaxSendSize 75MB-MaxReceiveSize 75}<\/code><\/p>\n<ul>\n<li style=\"text-align: left;\"><strong>Update all mailboxes <\/strong><\/li>\n<\/ul>\n<p style=\"text-align: left;\"><code>Get-Mailbox | Set-Mailbox \u2013MaxSendSize 75 MB \u2013MaxReceiveSize 75 MB<\/code><\/p>\n<ul>\n<li style=\"text-align: left;\"><strong>Update the default settings <\/strong><\/li>\n<\/ul>\n<p>To create the mailbox in the future.<\/p>\n<p><code>Get-MailboxPlan | Set-MailboxPlan \u2013MaxSendSize 75MB \u2013MaxReceiveSize 75MB<code><\/code><\/code><\/p>\n<p><strong>Conclusion :<\/strong><\/p>\n<p>In this article, I explained how to increase mail attachment size in Office 365 and discuss two methods, one is console and another is PowerShell. Use any one of them which is comfortable for you. If you have still any doubts then leave a message in the comment box.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The default Office 365 maximum message size for messages is 25MB. Since email text is usually shorter, this setting essentially restricts maximum attachment size. You can change the maximum message size for an individual mailbox<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"default","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[21],"tags":[],"class_list":["post-258","post","type-post","status-publish","format-standard","hentry","category-office-365"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>How to Increase Mail Attachment Size in Office 365<\/title>\n<meta name=\"description\" content=\"Know How to Increase Mail Attachment Size in Office 365. Just follow the simple steps to set recipient limit Office 365 using Console or PowerShell\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.mailsdaddy.com\/blogs\/increase-mail-attachment-size-office-365\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How to Increase Mail Attachment Size in Office 365\" \/>\n<meta property=\"og:description\" content=\"Know How to Increase Mail Attachment Size in Office 365. 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