Error Smtp 5.1.1

239 7742 Call Now My Account English Deutsch Espanol Francais Русский Українська Italiano Magyar Polski Portugues Brasil Svenska Turk Latin America Products Bulk Mailers Atomic Email Studio Atomic Mail Sender Email Extractors Atomic Email Extractor Atomic Lead Extractor Atomic Email Logger Atomic Web Spider Atomic WHOIS Explorer Atomic Newsgroup Extractor List Managers Atomic Email Verifier Atomic List Manager Atomic Subscription Manager Databases Atomic Web Catalogue Services Bulk Mailers Bulk SMS Sender Bulk Email Service SMTP Service For Mailing Lists Atomic Email Tracker Atomic Verifier Online Extras Custom Template Prices Benefits Features Knowledgebase Support Ask a question Video demo About us Our Company Contact us Our Benefits Success Stories Testimonials Blog Home SMTP for Atomic Email Marketing Software The 550 5.1.1 error message Note: SMTP error codes are not an exact science, because different servers can assign different meanings to the same error code. However, there are things that are likely to be true, and we are going to talk about them. You are reading this because you’ve received an automated message with a “550 5.1.1” error code in it. There are couple of things that could have caused this error: The recipient address does not exist: you may possess an outdated email that was valid at one time. There are typos in the recipient’s email address, which means that the address to which you are trying to send the email has never existed. If your MX record was changed, you may have an outdated DNS record and you were trying to resolve your MX record to an IP that no longer hosted it. There is something wrong with the configuration of the receiving server. How you can fix the 550 5.1.1 error Check the email for typos (sometimes they are quite obvious, for example: recipient.email@ggmail.com) and verify it. You can use an online tool that serves this purpose—there are lots of them on the Internet. Your DNS record is stale and cannot be resolved by the recipient server. It needs to be

for error code 5.1.1 through 5.1.20 in Office 365 Applies To: Office 365 Admin, Less Applies To: Office 365 Admin , More... Which version do I have? More... This topic can help you fix email problems that are associated with error codes 550 5.1.1 through 5.1.20 if you see this in a non-delivery report (NDR). Mail flow problems can be frustrating, but we have solutions you can try in order to get your message sent. I sent a message, what can I do to fix this? I'm the Admin, what can I do to fix this? Why did I get a non-delivery report? I sent a message and got error code 5.1.x in an NDR. What can I do to fix https://www.massmailsoftware.com/smtp/550-5-1-1.php this?    Here are 5 different solutions you can try. You might not need to try all of them. If the steps here don’t help you to successfully send the email, then contact your email administrator and refer them to the administrator help section of this topic so they can help you. Solution 1: Make sure the recipient's email address is correct    This is the most common issue that causes 5.1.x errors. Check for correct spelling. If https://support.office.com/en-us/article/Fix-email-delivery-issues-for-error-code-5-1-1-through-5-1-20-in-Office-365-79e91ade-5c83-405b-a37d-d99c7d069b13 you change something, send the email again. Solution 2: Remove the recipient's email address from the auto-complete list    Remove the recipient’s email address from the list of suggested names in the auto-complete list, then type it again before trying to send the email. The auto-complete list is a list of suggested names that shows up in your email program when it finds a name that matches what you have typed on the To line. If you need more detail about this, see Remove suggested name or email address from the Auto-Complete List in Outlook Web App. Create a new email message. In the To field, start typing the recipient's name or email address until the recipient appears in the drop-down list. Use the Down Arrow and Up Arrow keys to select the recipient, and then press the Delete key. Type the recipient’s complete address and then send your message. Solution 3: Make sure the recipient doesn't have an email message forwarding rule in place    Did you send the original message to exactly the same recipient address that is shown in the NDR? You can verify this by comparing the address provided in the NDR with the address shown in the original message that is in your Sent folder. If the addresses don't match, contact the person you sent the original message to and ask them if th

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