{"id":49330,"date":"2026-10-06T19:40:12","date_gmt":"2026-10-06T16:40:12","guid":{"rendered":"https:\/\/snov.io\/knowledgebase\/?p=49330"},"modified":"2026-10-08T21:14:26","modified_gmt":"2026-10-08T18:14:26","slug":"how-to-scale-email-sending-volume","status":"publish","type":"post","link":"https:\/\/snov.io\/knowledgebase\/how-to-scale-email-sending-volume\/","title":{"rendered":"How many emails are safe to send in outreach"},"content":{"rendered":"<p>This guide explains how to scale sending limits safely and control your total outreach volume. The limit recommendations you'll find in this article are for personalized cold outreach.<\/p>\n<div id=\"connect-and-warm-up-a-mailbox\" class=\"notification-block learn\">\n<div class=\"notification-block__icon\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/snov.io\/knowledgebase\/wp-content\/themes\/knowledgebase-n\/assets\/img\/fluent_chat-warning-16-regular.svg\" alt=\"learn\" width=\"32\" height=\"32\" \/><\/div>\n<div class=\"notification-block__text\">\n<p>Before you start. <a href=\"https:\/\/app.snov.io\/account\/email-account\" target=\"_blank\" rel=\"noopener\">Connect the mailbox<\/a>, check its default limit, and start <a href=\"https:\/\/app.snov.io\/deliverability\/#\/warm-up\" target=\"_blank\" rel=\"noopener\">warm-up.<\/a><\/p>\n<\/div>\n<\/div>\n<p>This guide is for accounts that finished warm-up and are about to start outreach. For warm-up settings, see <a href=\"https:\/\/snov.io\/knowledgebase\/snov-io-email-warm-up-tool\/\" target=\"_blank\" rel=\"noopener\">this guide<\/a>.<\/p>\n<h2 id=\"recommended-limits-for-outreach\"><strong>Limits for warmed-up accounts<\/strong><\/h2>\n<p>If your account already completed warm-up, you can start campaigns with these recommended limits:<\/p>\n<h3 id=\"daily-limits-per-mailbox\"><strong>Daily limits per mailbox<\/strong><\/h3>\n<p><strong>Gmail and Outlook accounts<\/strong> (cold outreach)<\/p>\n<ul>\n<li><strong>30-40 emails\/day<\/strong> account limit<\/li>\n<li><strong>10 emails<\/strong> for warm-up<\/li>\n<\/ul>\n<p><strong>SMTP accounts<\/strong> (automated campaigns to existing subscribers or users)<\/p>\n<ul>\n<li><strong>50 emails\/day<\/strong> or more, depending on your provider's limit, since deliverability is less critical here<\/li>\n<\/ul>\n<div id=\"keep-warm-up-running\" class=\"notification-block tip\">\n<div class=\"notification-block__icon\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/snov.io\/knowledgebase\/wp-content\/themes\/knowledgebase-n\/assets\/img\/academicons_ideas-repec.svg\" alt=\"tip\" width=\"32\" height=\"32\" \/><\/div>\n<div class=\"notification-block__text\">\n<p>Keep warm-up running during outreach.<\/p>\n<\/div>\n<\/div>\n<p>Warm-up offsets the negative signals that cold emailing creates, such as low reply rates and spam reports. If you stop it, sender reputation slowly drops.<\/p>\n<div class=\"notification-block note\">\n<div class=\"notification-block__icon\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/snov.io\/knowledgebase\/wp-content\/themes\/knowledgebase-n\/assets\/img\/ph_circle-wavy-warning.svg\" alt=\"note\" width=\"32\" height=\"32\" \/><\/div>\n<div class=\"notification-block__text\">\n<p>The total limit for campaign emails and warm-up emails together is 50 per day or less.<\/p>\n<\/div>\n<\/div>\n<p>Your provider may allow more, but we do not recommend it for cold outreach. Higher volume hurts deliverability and engagement, so <a href=\"#add-mailboxes-and-domains\">add mailboxes<\/a> instead.<\/p>\n<p>To learn how to control both campaign and warm-up limits, read <a href=\"https:\/\/snov.io\/knowledgebase\/how-sending-limits-work\/\" target=\"_blank\" rel=\"noopener\">this guide<\/a>.<\/p>\n<h2 id=\"limits-for-accounts-without-warm-up\"><strong>Limits for accounts without warm-up<\/strong><\/h2>\n<p>We recommend waiting to send campaign emails until warm-up finishes.<\/p>\n<p><span style=\"font-weight: 400;\">But if you need to start outreach right away with accounts that are not warmed up yet, use this rule to increase sending volume safely.<\/span><\/p>\n<div class=\"notification-block tip\">\n<div class=\"notification-block__icon\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/snov.io\/knowledgebase\/wp-content\/themes\/knowledgebase-n\/assets\/img\/academicons_ideas-repec.svg\" alt=\"tip\" width=\"32\" height=\"32\" \/><\/div>\n<div class=\"notification-block__text\">\n<p><span style=\"font-weight: 400;\">Start with 1 cold email for every 4 warm-up emails, and scale up to 4 cold emails for every 1 warm-up email.<\/span><\/p>\n<\/div>\n<\/div>\n<p><span style=\"font-weight: 400;\">Follow the ramp-up pattern. The main rule is to raise your daily volume gradually so you do not hurt deliverability.<\/span><\/p>\n<h3 id=\"weekly-ramp-up-schedule\"><strong>Weekly ramp-up schedule<\/strong><\/h3>\n<div style=\"overflow-x: auto; padding: 1px;\">\n<table style=\"width: 95%; border-collapse: collapse; font-family: sans-serif; table-layout: fixed; border: 1px solid #b3d9ff;\">\n<thead>\n<tr>\n<th style=\"padding: 12px; text-align: left; background-color: #e6f2ff; border: 1px solid #b3d9ff;\">Period<\/th>\n<th style=\"padding: 12px; text-align: left; background-color: #e6f2ff; border: 1px solid #b3d9ff;\">Campaign limit<\/th>\n<th style=\"padding: 12px; text-align: left; background-color: #e6f2ff; border: 1px solid #b3d9ff;\">Warm-up limit<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding: 12px; border: 1px solid #b3d9ff;\"><strong>In the first week of the campaign<\/strong><\/td>\n<td style=\"padding: 12px; border: 1px solid #b3d9ff;\">Use the starting limit for your provider (15 emails\/day for Gmail or 5 emails\/day for Outlook)<\/td>\n<td style=\"padding: 12px; border: 1px solid #b3d9ff;\">40 warm-up emails\/day<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 12px; border: 1px solid #b3d9ff;\"><strong>Each following week<\/strong><\/td>\n<td style=\"padding: 12px; border: 1px solid #b3d9ff;\">Add 5 emails to the campaign limit<\/td>\n<td style=\"padding: 12px; border: 1px solid #b3d9ff;\">Remove 5 emails from the warm-up limit<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">After about 1 month, you'll safely reach the recommended limits per account: 40 campaign emails\/day and 10 warm-up emails\/day.<\/span><\/p>\n<h3 id=\"monitor-account-health\"><strong>Monitor account health and react to any issues<\/strong><\/h3>\n<p>Lower the campaign limit and increase warm-up if:<\/p>\n<ul>\n<li>Your bounce rate goes above 2% (check your bounce reports regularly)<\/li>\n<li><a href=\"https:\/\/app.snov.io\/deliverability\/#\/\" target=\"_blank\" rel=\"noopener\">Deliverability tests<\/a> show your emails going to spam<\/li>\n<li>Your <a href=\"https:\/\/app.snov.io\/deliverability\/#\/\" target=\"_blank\" rel=\"noopener\">domain health check<\/a> reports missing or failing DNS records<\/li>\n<\/ul>\n<div class=\"notification-block note\">\n<div class=\"notification-block__icon\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/snov.io\/knowledgebase\/wp-content\/themes\/knowledgebase-n\/assets\/img\/ph_circle-wavy-warning.svg\" alt=\"note\" width=\"32\" height=\"32\" \/><\/div>\n<div class=\"notification-block__text\">\n<p>Reduce campaign volume, keep warm-up running, fix the cause, and raise the limit again in small weekly steps.<\/p>\n<\/div>\n<\/div>\n<h2 id=\"create-more-sender-accounts-for-rotation\"><strong>Create more sender accounts for rotation<\/strong><\/h2>\n<p><span style=\"font-weight: 400;\">To send more safely, set up your sending infrastructure the right way. <\/span><span style=\"font-weight: 400;\">Connect your existing accounts or create done-for-you mailboxes for a faster start.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Calculate how many domains and mailboxes you need, depending on how many leads you want to contact per day.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">You can scale safely in Snov.io by adding unlimited sender accounts to reach your sending volume goal.<\/span><\/p>\n<h3 id=\"use-mailbox-rotation\"><strong>Use mailbox rotation<\/strong><\/h3>\n<p>To increase your total volume, connect more sender accounts (your own or done-for-you) and rotate them in your campaigns. For the steps, <a href=\"https:\/\/snov.io\/knowledgebase\/how-to-use-mailbox-rotation-to-increase-sending-limit\/\" target=\"_blank\" rel=\"noopener\">read this guide<\/a>.<\/p>\n<p><span style=\"font-weight: 400;\">Plan around these recommended limits:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Domains:<\/b><span style=\"font-weight: 400;\"> unlimited<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Mailboxes:<\/b><span style=\"font-weight: 400;\"> up to 5 per domain<\/span><\/li>\n<\/ul>\n<h3 id=\"daily-sending-limit-per-mailbox\"><strong>Daily sending limit per mailbox<\/strong><\/h3>\n<p><span style=\"font-weight: 400;\">For cold outreach, we recommend a total limit of no more than 50 emails\/day per account, split between campaigns and warm-up.<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">At the campaign start: 10 campaign emails + 40 warm-up emails<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">After 1 month of safe scaling: 40 cold emails + 10 warm-up emails per day<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">That makes scaling more predictable and much safer for deliverability.<\/span><\/p>\n<div class=\"notification-block tip\">\n<div class=\"notification-block__icon\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/snov.io\/knowledgebase\/wp-content\/themes\/knowledgebase-n\/assets\/img\/academicons_ideas-repec.svg\" alt=\"tip\" width=\"32\" height=\"32\" \/><\/div>\n<div class=\"notification-block__text\">\n<p>Always keep a backup domain during outreach.<\/p>\n<\/div>\n<\/div>\n<p>Active domains do the campaign sending, while mailboxes on backup domains are on warm-up until they're ready. This means you always have the warmed-up senders ready when you need them.<\/p>\n<p><span style=\"font-weight: 400;\">Plan your volume, create as many domains and mailboxes as needed, and deploy them gradually after warm-up.<\/span><\/p>\n<h3 id=\"example-setups\"><strong>Example setups<\/strong><\/h3>\n<p><span style=\"font-weight: 400;\">Here's what that can look like in practice:<\/span><\/p>\n<div style=\"overflow-x: auto; padding: 1px;\">\n<table style=\"width: 95%; border-collapse: collapse; font-family: sans-serif; table-layout: fixed; border: 1px solid #b3d9ff;\">\n<thead>\n<tr>\n<th style=\"padding: 12px; text-align: left; background-color: #e6f2ff; border: 1px solid #b3d9ff;\">Setup<\/th>\n<th style=\"padding: 12px; text-align: left; background-color: #e6f2ff; border: 1px solid #b3d9ff;\">Total starting limit<\/th>\n<th style=\"padding: 12px; text-align: left; background-color: #e6f2ff; border: 1px solid #b3d9ff;\">After warm-up<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding: 12px; border: 1px solid #b3d9ff;\"><strong>1 active domain with 4\u20135 mailboxes + 1 backup domain<\/strong><\/td>\n<td style=\"padding: 12px; border: 1px solid #b3d9ff;\">40\u201350 campaign emails\/day<\/td>\n<td style=\"padding: 12px; border: 1px solid #b3d9ff;\">160\u2013200 emails\/day<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 12px; border: 1px solid #b3d9ff;\"><strong>2 active domains with 8\u201310 mailboxes + 1 backup domain<\/strong><\/td>\n<td style=\"padding: 12px; border: 1px solid #b3d9ff;\">80\u2013100 campaign emails\/day<\/td>\n<td style=\"padding: 12px; border: 1px solid #b3d9ff;\">320\u2013400 emails\/day<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">This can scale infinitely in Snov.io. Just keep adding domains and mailboxes as needed.<\/span><\/p>\n<div class=\"notification-block note-gray\">\n<div class=\"notification-block__text\">\n<h3><strong>Related articles<\/strong><\/h3>\n<p><a href=\"https:\/\/snov.io\/knowledgebase\/email-sending-limits\/\" target=\"_blank\" rel=\"noopener\">How to set and manage email sending limits<\/a><br \/>\n<a href=\"https:\/\/snov.io\/knowledgebase\/how-sending-limits-work\/\" target=\"_blank\" rel=\"noopener\">How sending limits work in Snov.io<\/a><br \/>\n<a href=\"https:\/\/snov.io\/knowledgebase\/snov-io-email-warm-up-tool\/\" target=\"_blank\" rel=\"noopener\">How to set up Email Warm-up to improve deliverability<\/a><br \/>\n<a href=\"https:\/\/snov.io\/knowledgebase\/how-to-use-mailbox-rotation-to-increase-sending-limit\/\" target=\"_blank\" rel=\"noopener\">How to use email account rotation in campaigns<\/a><br \/>\n<a href=\"https:\/\/snov.io\/knowledgebase\/how-to-avoid-spam-filters\/\" target=\"_blank\" rel=\"noopener\">How to avoid spam filters and improve sender reputation<\/a><\/p>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>This guide explains how to scale sending limits safely and control your total outreach volume. The limit recommendations you&#8217;ll find in this article are for personalized cold outreach. Before you start. Connect the mailbox, check its default limit, and start warm-up. This guide is for accounts that finished warm-up and are about to start outreach. [&hellip;]<\/p>\n","protected":false},"author":16,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1938],"tags":[],"_links":{"self":[{"href":"https:\/\/snov.io\/knowledgebase\/wp-json\/wp\/v2\/posts\/49330"}],"collection":[{"href":"https:\/\/snov.io\/knowledgebase\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/snov.io\/knowledgebase\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/snov.io\/knowledgebase\/wp-json\/wp\/v2\/users\/16"}],"replies":[{"embeddable":true,"href":"https:\/\/snov.io\/knowledgebase\/wp-json\/wp\/v2\/comments?post=49330"}],"version-history":[{"count":22,"href":"https:\/\/snov.io\/knowledgebase\/wp-json\/wp\/v2\/posts\/49330\/revisions"}],"predecessor-version":[{"id":49474,"href":"https:\/\/snov.io\/knowledgebase\/wp-json\/wp\/v2\/posts\/49330\/revisions\/49474"}],"wp:attachment":[{"href":"https:\/\/snov.io\/knowledgebase\/wp-json\/wp\/v2\/media?parent=49330"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/snov.io\/knowledgebase\/wp-json\/wp\/v2\/categories?post=49330"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/snov.io\/knowledgebase\/wp-json\/wp\/v2\/tags?post=49330"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}