Hi Ian, sorry to hear that youre running into this problem. So i changed/altered following settings: postfix - main.cf added: smtpd_helo_required = yes To upload the screenshots: there is picture icon on the editor - click it and browse for the screenshot. /Type /Action /StructParent 32 Situation: Email sent out by user this morning and requests a read receipt using Outlook. Learn more about in-line threading. It happens to several people randomly. Learn more about in-line threading. We are happy to help but will need to see the full returned email message with headers to narrow this down further. Encrypted email that's private by default. , Received: from wsip-98-190-203-196.rn.hr.cox.net ([98.190.203.196]:57680, by ecbiz153.inmotionhosting.com with esmtp (Exim 4.85), for [emailprotected]; Wed, 28 Oct 2015 14:55:44 -0400, boundary=-=_NextPart_000_005B_01D11190.B8AAF730, Thread-Index: AdERsj4o6EeyxUIoSBGvq3Wy2EYfJg==. /A << /URI (mailto::blocked,jakel@infowars.com) It suggests ways of preventing it happening in the future but nothing to help in stopping these error messages being bounced back to the sender. People sending email to my Comcast address have been receiving notices . I tried this myself, sending my Comcast address a message from Gmail. The recipient that you're attempting to contact isn't valid. /URI (mailto:robd@infowars.com) We are getting a very strangeUndelivered Mail Returned to Sender. /Subtype /Form This puts me in the very awkward position of not being able to contact people by email. 421-4.7.0 suspicious due to the very low reputation of the sending IP address. << /Type /Annot I am not sure how to go about fixing this problem?? /StructParent 3 << /Type /Annot /BS << /W 0 >>>> I sent an email. /S /URI /BS << /W 0 >>>> mail:je reois plein de mail delivery failed. 113 0 obj Similar to 550 5.1.10. /Type /Action Worked pretty well for me when someone wouldnt stop bothering mewith their emails. "Mail delivery failed: returning message to sender' is another dangerous subject line to be wary of, according to Websense. DNSSEC checks have passed, yet upon establishing the connection the destination mail server provides a certificate that is expired. be delivered to one or more recipients. endobj /Subtype /Link If no remote server is listed below the sender's email address, the generating server is also the server that rejected the original email message. >> 116 0 obj /A << << /Type /Annot This field indicates the name of the SMTP mail server that created the NDR. %PDF-1.5 /Subtype /Link endobj 2 0 obj For example, the below bounce specifies: We understand it can be difficult at time to review the full contents of a returned email message, so we created the following tool to help pull the important information for you. If enough people write to them, we have seen that companies quickly reverse course and allow registration with Proton Mail accounts. /QuadPoints [ 80.875 170.5 184.824997 170.5 184.824997 158.5 80.875 158.5 ] For more information about this by-design throttling, see. 72 0 obj Stay on top of the new way to organize a space. Ive resolved the problem now. /BS << /W 0 >>>> /S /URI /Subtype /Link /Subtype /Link Mail can be undeliverable for these reasons: No postage. Journaling on-premises messages to Microsoft 365 or Office 365 not supported when Journaling Archive is disabled. /A << Mail delivery failed: returning message to sender bounce-backs, Delivery-date: Fri, 13 Jan 2017 17:38:53 +0530, Received: from exim by mail.suryajyoti.com with local (Exim 4.72 #6), for <[emailprotected]>; Fri, 13 Jan 2017 17:38:53 +0530, From: Mail Delivery System <[emailprotected]>, Subject: Mail delivery failed: returning message to sender, X-EMLSPAM-REFID: str=0001.0A15020A.5878C35D.0430,ss=1,re=0.000,fgs=256. /QuadPoints [ 80.875 218.5 173.275002 218.5 173.275002 206.5 80.875 206.5 ] Sign in. /QuadPoints [ 184.824997 170.5 334.974991 170.5 334.974991 158.5 184.824997 158.5 ] >> /A << << /Type /Annot And the period on a line by itself indicates that you are done with . << /Type /Annot << /Type /Annot /BS << /W 0 >>>> If you do so, please include this problem report. /StructParent 30 A message that you sent could not be delivered to one or more of its recipients. /A << 1) unul_catalin@yahoo.com cannot receive any emails, because the mailbox has been disabled. It would be helpful to know if there is anything unusual about the outgoing mail. All of a sudden I am receiving bounced emails with this title "Undelivered Mail Returned to Sender". If you happen to be around when your mail carrier is making their deliveries, you can give the misdelivered piece back to them directly. /Subtype /Link /QuadPoints [ 57.775 302.5 150.175002 302.5 150.175002 290.5 57.775 290.5 ] /A << /QuadPoints [ 179.050003 398.5 334.975006 398.5 334.975006 386.5 179.050003 386.5 ] /Type /Action << /Type /Annot 82 0 obj /URI (mailto:robd@infowars.com) /StructParent 41 /QuadPoints [ 207.925003 482.5 404.275009 482.5 404.275009 470.5 207.925003 470.5 ] 94 0 obj Paste the NDR code or error message, and then select Run Tests. 83 0 obj To help protect against exhausting system resources, Exchange interrupts the mail loop after 20 iterations. /QuadPoints [ 173.274994 338.5 329.199997 338.5 329.199997 326.5 173.274994 326.5 ] This is a permanent error. /QuadPoints [ 80.875 338.5 173.275002 338.5 173.275002 326.5 80.875 326.5 ] How did this get set to auto-forward my mail to a service I don't use? /S /URI To resolve the issue: Double-click the time on the right-bottom corner of the computer. So, I'll mark this as accepted, because inexplicably that is exactly what the case was - but why?! /Type /Action /StructParent 17 /URI (mailto::blocked,jake@infowars.com) Eventually the mail delivery software will give up, and when that happens, the message will be returned to you. endobj >> Error message was: < someone@somedomain.com >: connect to smtp.somedomain.com [IP address here]:25:Connection timed out. /QuadPoints [ 184.824997 170.5 334.974991 170.5 334.974991 158.5 184.824997 158.5 ] << /Type /Annot Everybody makes them, so try not to be too frustrated about this. A configuration error has caused an email loop. /URI (mailto::blocked,jakel@infowars.com) The first step in resolving this error is to check the recipient address, and send the message again. /QuadPoints [ 196.375 302.5 392.725006 302.5 392.725006 290.5 196.375 290.5 ] /StructParent 45 You can delete your own text from the attached returned message. << /Type /Annot endobj The link you provided, included more in-depth information from Google. /S /URI /QuadPoints [ 358.075012 542.5 485.125015 542.5 485.125015 530.5 358.075012 530.5 ] If you do so, please include this problem report. /S /URI There are several common reasons you may receive undeliverable e-mail returns: Incorrect email address. /URI (mailto::blocked,reese@infowars.com) The logo doesn't mean that Microsoft 365 or Office 365 was responsible for the error. /Subtype /Link Press J to jump to the feed. Improve the security of your business and comply with data protection laws. endobj << /Type /Annot /Subtype /Link /URI (mailto:jon@infowars.com) /URI (mailto::blocked,jakel@infowars.com) 99 0 obj Many email hosting servers use Security Policy Framework to ensure the authenticity of the sender's email. A journaling rule is configured in the organization's on-premises environment to journal on-premises messages to Microsoft 365 or Office 365, but Journaling Archive is disabled. >> Content-Transfer-Encoding: quoted-printable,