{"Status":true,"Message":"","Response":{"post":{"postuid":"6fvbc5wo16","tenantuid":"d8b744fc-2e70-4089-bb80-dd1d08f6c7b2","projectuid":"239698c5-f7eb-4574-8cc8-c6568f08b3a0","title":"Bounced Email Guide","slug":"article/6fvbc5wo16-bounced-email-guide","html":"\u003Cp\u003EWhen sending email, you will occasionally receive a notification in DailyStory that your message bounced.\u003C/p\u003E\u003Ch3\u003EWhat is a bounced email\u003C/h3\u003E\u003Cp\u003EA bounced email is a notification from the recipient\u0026#39;s email system informing the sender that the message has not been delivered (or another delivery problem occurred). The original message is said to have \u0026#34;bounced\u0026#34;.\u003C/p\u003E\u003Ch4\u003EWhat causes email to bounce\u003C/h4\u003E\u003Cp\u003EThere can be numerous causes that lead to an email server preventing delivery of your message:\u003C/p\u003E\u003Cul\u003E\u003Cli\u003EAn email filter prevented delivery of your message\u003C/li\u003E\u003Cli\u003EThe recipients inbox is full and is out of storage\u003C/li\u003E\u003Cli\u003EThe email address no longer exists\u003C/li\u003E\u003Cli\u003EThe amount of email sent to the domain it too high a volume in too short a time period\u003C/li\u003E\u003C/ul\u003E\u003Ch4\u003ETypes of bounces\u003C/h4\u003E\u003Cp\u003EThere are two distinct types of bounces that can occur.\u003C/p\u003E\u003Ccite class=\u0022recommended\u0022\u003E\u003Cspan class=\u0022title\u0022\u003E\u003Ci class=\u0022fa-duotone fa-circle-exclamation\u0022 aria-hidden=\u0022true\u0022\u003E\u003C/i\u003ERecommended\u003C/span\u003E\u003Cp\u003EIf you receive a high bounce rate on an email send DailyStory will throttle delivery of additional messages.\u003C/p\u003E\u003C/cite\u003E\u003Ch5\u003ESoft Bounce\u003C/h5\u003E\u003Cp\u003EA temporary issue related to the recipient\u0026#39;s email server preventing delivery.\u003C/p\u003E\u003Cul\u003E\u003Cli\u003ECode usually starts with \u0026#34;4xx\u0026#34;\u003C/li\u003E\u003C/ul\u003E\u003Cp\u003ESoft bounces usually resolve themselves. DailyStory will continue checking the status of a soft bounced email for up to 12 hours.\u003C/p\u003E\u003Ch5\u003EHard Bounce\u003C/h5\u003E\u003Cp\u003EA permanent issue related to the recipient\u0026#39;s email server.\u003C/p\u003E\u003Cul\u003E\u003Cli\u003EMessage couldn\u0026#39;t be delivered due to some sort of invalid, unchangeable, permanent reason\u003C/li\u003E\u003Cli\u003ESome are in your control and some are not (see below for tips for what is in your control)\u003C/li\u003E\u003Cli\u003ECode usually starts with \u0026#34;5xx\u0026#34;\u003C/li\u003E\u003C/ul\u003E\u003Ccite class=\u0022recommended\u0022\u003E\u003Cspan class=\u0022title\u0022\u003E\u003Ci class=\u0022fa-duotone fa-circle-exclamation\u0022 aria-hidden=\u0022true\u0022\u003E\u003C/i\u003ERecommended\u003C/span\u003E\u003Cp\u003ETo check your SPAM score (a numerical rating 0-10), you can use a free site like\u0026#160;\u003Ca href=\u0022https://www.mail-tester.com/\u0022\u003Ehttps://www.mail-tester.com/\u003C/a\u003E\u0026#160;to understand if your emails are at risk.\u003C/p\u003E\u003C/cite\u003E\u003Ch3\u003EHow to prevent bounced emails\u003C/h3\u003E\u003Cp\u003EThere are several steps you can take to prevent emails from bouncing. And we recommend reading our detailed blog post for \u003Ca href=\u0022https://www.dailystory.com/blog/inbox-placement-9-tips-to-help-your-email-get-seen/\u0022\u003Eavoiding the junk folder and preventing bounced emails\u003C/a\u003E.\u003C/p\u003E\u003Ch3\u003EUse clean and verified data\u003C/h3\u003E\u003Cp\u003EIt\u0026#39;s important that you keep your email lists clean and up-to-date.\u003C/p\u003E\u003Cul\u003E\u003Cli\u003ERefrain from using unreliable contact lists\u003C/li\u003E\u003Cli\u003ERemove incorrect or old emails which affect your bounce rate\u003C/li\u003E\u003Cli\u003EUse a service such as \u003Ca href=\u0022https://neverbounce.com\u0022 target=\u0022_blank\u0022\u003ENeverBounce\u003C/a\u003E to verify the deliverability of email addresses\u003C/li\u003E\u003C/ul\u003E\u003Ch3\u003EAvoid common content SPAM triggers\u003C/h3\u003E\u003Cp\u003EThere are number of known SPAM triggers that you can avoid.\u003C/p\u003E\u003Cul\u003E\u003Cli\u003EAvoid numerous exclamation points. This can trigger mail providers to block your email as SPAM.\u003C/li\u003E\u003Cli\u003EUse standard fonts and colors. Unrecognized fonts and colors can trigger your email as SPAM.\u003C/li\u003E\u003Cli\u003ECompress images and use the rule of thumb of 70% text and 30% images.\u003C/li\u003E\u003Cli\u003ERemove excessive links. Emails will be flagged as SPAM if there are more than 6 links.\u003C/li\u003E\u003C/ul\u003E\u003Ch3\u003EAvoid common SPAM words and phrases\u003C/h3\u003E\u003Cp\u003ESee our article \u003Ca href=\u0022https://www.dailystory.com/blog/keyword-blocklists-what-they-do-and-whether-you-should-use-them/\u0022\u003EKeyword blocklists: What they do and whether you should use them\u003C/a\u003E to access and download common SPAM keywords to avoid.\u003C/p\u003E\u003Ccite class=\u0022recommended\u0022\u003E\u003Cspan class=\u0022title\u0022\u003E\u003Ci class=\u0022fa-duotone fa-circle-exclamation\u0022 aria-hidden=\u0022true\u0022\u003E\u003C/i\u003ERecommended\u003C/span\u003E\u003Cp\u003EAn acceptable bounce rate is between 2-5%. Anything over 5% suggests a problem you need to address and resolve. DailyStory report dashboards give you bounce % rates for individual emails and emails within a timeframe you can set.\u003C/p\u003E\u003C/cite\u003E\u003Ch3\u003EBounced status reports in DailyStory\u003C/h3\u003E\u003Cp\u003EWhen viewing bounced reports in DailyStory, you will see the type of bounce and the bounce code.\u003C/p\u003E\u003Cimg class=\u0022lazy-load\u0022 data-src=\u0022https://graffiti-auf7e6dwhxhcbwek.z03.azurefd.net/d8b744fc-2e70-4089-bb80-dd1d08f6c7b2/239698c5-f7eb-4574-8cc8-c6568f08b3a0/f81354aa9534cf818975355b74aad984.jpeg\u0022 style=\u0022\u0022 alt=\u0022\u0022/\u003E\u003Cp\u003ETo see a complete list of your bounced contacts, navigate to \u003Ccode\u003EContacts \u0026gt; Search Contacts\u003C/code\u003E from the Navigation Bar menu and select \u003Cb\u003EBounced\u003C/b\u003E from the \u003Ccode\u003EStatus\u003C/code\u003E field row.\u003C/p\u003E\u003Cimg class=\u0022lazy-load\u0022 data-src=\u0022https://graffiti-auf7e6dwhxhcbwek.z03.azurefd.net/d8b744fc-2e70-4089-bb80-dd1d08f6c7b2/239698c5-f7eb-4574-8cc8-c6568f08b3a0/ce96d9e658569dd9d206195bfb363b22.jpeg\u0022 style=\u0022\u0022 alt=\u0022\u0022/\u003E\u003Ccite class=\u0022recommended\u0022\u003E\u003Cspan class=\u0022title\u0022\u003E\u003Ci class=\u0022fa-duotone fa-circle-exclamation\u0022 aria-hidden=\u0022true\u0022\u003E\u003C/i\u003ERecommended\u003C/span\u003E\u003Cp\u003EBounced contacts will not be reflected in saved segments numbers or appear in saved segment lists, so you cannot save this search as a segment. To work with your bounced list, create the search and then export the list.\u003C/p\u003E\u003C/cite\u003E\u003Ch3\u003EBounce code descriptions\u003C/h3\u003E\u003Ctable border=\u00221\u0022 style=\u0022border-collapse: collapse; width: 100%;\u0022\u003E\u003Ctr\u003E\u003Ctd\u003ECode\u003C/td\u003E\u003Ctd\u003EDescription\u003C/td\u003E\u003C/tr\u003E\u003Ctr\u003E\u003Ctd\u003E421\u003C/td\u003E\u003Ctd\u003Eservice not available, closing transmission channel\u003C/td\u003E\u003C/tr\u003E\u003Ctr\u003E\u003Ctd\u003E450\u003C/td\u003E\u003Ctd\u003ERequested mail action not taken: mailbox unavailable (e.g., mailbox busy)\u003C/td\u003E\u003C/tr\u003E\u003Ctr\u003E\u003Ctd\u003E451\u003C/td\u003E\u003Ctd\u003ERequested action aborted: error in processing\u003C/td\u003E\u003C/tr\u003E\u003Ctr\u003E\u003Ctd\u003E452\u003C/td\u003E\u003Ctd\u003ERequested action not taken: insufficient system storage\u003C/td\u003E\u003C/tr\u003E\u003Ctr\u003E\u003Ctd\u003E500\u003C/td\u003E\u003Ctd\u003EThe server could not recognize the command due to a syntax error.\u003C/td\u003E\u003C/tr\u003E\u003Ctr\u003E\u003Ctd\u003E501\u003C/td\u003E\u003Ctd\u003EA syntax error was encountered in command arguments.\u003C/td\u003E\u003C/tr\u003E\u003Ctr\u003E\u003Ctd\u003E502\u003C/td\u003E\u003Ctd\u003EThis command is not implemented.\u003C/td\u003E\u003C/tr\u003E\u003Ctr\u003E\u003Ctd\u003E503\u003C/td\u003E\u003Ctd\u003EThe server has encountered a bad sequence of commands.\u003C/td\u003E\u003C/tr\u003E\u003Ctr\u003E\u003Ctd\u003E504\u003C/td\u003E\u003Ctd\u003EA command parameter is not implemented.\u003C/td\u003E\u003C/tr\u003E\u003Ctr\u003E\u003Ctd\u003E550\u003C/td\u003E\u003Ctd\u003EUser\u0026#8217;s mailbox address is invalid\u003C/td\u003E\u003C/tr\u003E\u003Ctr\u003E\u003Ctd\u003E551\u003C/td\u003E\u003Ctd\u003EThe recipient is not local to the server.\u003C/td\u003E\u003C/tr\u003E\u003Ctr\u003E\u003Ctd\u003E552\u003C/td\u003E\u003Ctd\u003EThe action was aborted due to exceeded storage allocation.\u003C/td\u003E\u003C/tr\u003E\u003Ctr\u003E\u003Ctd\u003E553\u003C/td\u003E\u003Ctd\u003EThe command was aborted because the mailbox name is invalid.\u003C/td\u003E\u003C/tr\u003E\u003Ctr\u003E\u003Ctd\u003E554\u003C/td\u003E\u003Ctd\u003EThe transaction failed for some unstated reason.\u003C/td\u003E\u003C/tr\u003E\u003Ctr\u003E\u003Ctd\u003E602\u003C/td\u003E\u003Ctd\u003EInternal error code that messages bounced after attempts over 8 hours.\u003C/td\u003E\u003C/tr\u003E\u003C/table\u003E\u003Ch3\u003EBounce and retry handling\u003C/h3\u003E\u003Cp\u003EDailyStory includes advanced logic for bounce/retry logic to automatically reset emails if a non-hard bounce error occurs.\u003C/p\u003E\u003Cp\u003EFor example, email recipients that return a bounce status due to:\u003C/p\u003E\u003Cul\u003E\u003Cli\u003EInbox full\u003C/li\u003E\u003Cli\u003EInbox over quota\u003C/li\u003E\u003Cli\u003EInbox temporarily disabled\u003C/li\u003E\u003C/ul\u003E\u003Ccite class=\u0022recommended\u0022\u003E\u003Cspan class=\u0022title\u0022\u003E\u003Ci class=\u0022fa-duotone fa-circle-exclamation\u0022 aria-hidden=\u0022true\u0022\u003E\u003C/i\u003ERecommended\u003C/span\u003E\u003Cp\u003EThese and other codes - at DailyStory\u0026#39;s discretion - will instead change the contacts do not contact until a date to a future date between 15-30 days out. This ensures the contact can cool down for a period of time prior to being eligible for a future email campaign.\u003C/p\u003E\u003C/cite\u003E","publish_status":0,"post_type":"Article","author":{},"featured_image_updating":false,"meta_description":"When sending email, you will occasionally receive a notification in DailyStory that your message bounced. What is a bounced email A bounced email is a notification from the recipient\u0026#39;s email system informing the sender that the message has not been delivered (or another delivery problem occurred). The original message is said to have \u0026#34;bounced\u0026#34;. What causes email to bounce There can be numerous causes that lead to an email server preventing delivery of your message: An email filte ...","display_toc":true,"has_workingcopy":false,"allow_indexing":true,"sort_order":10,"total_views":913,"date_published":"2024-10-15T17:06:04","date_updated":"2025-05-16T19:16:27.123","date_created":"2025-04-24T15:02:32.487"}}}