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https://social.technet.microsoft.com/forums/exchange/en-US/7126ef3d-db0a-45c3-80ce-b21cf5604b1a/status-523-errors-on-attachments
May 09, 2014 · Hi, I am gettign from one of my clients server the Status: 5.2.3 NDR emails whenever someone sends attachments to the server The attachment limits are at least twice the size of the test file i am sending them, but still this keeps happening Checked all the size limts and they are wel and truly ... · So just an update it is in fact not all attachments ...
https://community.spiceworks.com/topic/2062155-email-delivery-error-500-5-1-3
Oct 03, 2017 · We have an issue where a user is sending an email to a valid gmail address. While we have confirmed via a phone call that the gmail user is receiving the message, the sender is getting the following bounce back message: [email protected] #550 5.1.3 STOREDRV.Submit; invalid recipient address #SMTP#
https://answers.microsoft.com/en-us/outlook_com/forum/oemail-osend/error-code-status-550-email-delivery-failed-need/bc9bfe29-fef2-439f-8f72-104a33d6de4e
Mar 09, 2016 · 2-I encounter this issue of sending emails to this particular address only sometime, as most of the time my emails are successfully delivered, without being returned, or failed and bounced back at me. 3-This email address in question is web-based, and it's the only address i have problem with.
https://community.spiceworks.com/how_to/939-ndr-non-delivery-receipts-codes-and-their-meanings
5.2.x NDR caused by a problem with the large size of the email. 5.2.1 The message is too large. Else it could be a permissions problem. Check the recipient's mailbox. 5.2.2 Sadly, the recipient has exceeded their mailbox limit. 5.2.3 Recipient cannot receive messages this big. Server or connector limit exceeded.
https://www.experts-exchange.com/questions/23894116/Receive-email-error-5-2-3.html
Your exchange config looks ok, but I ment to look in the settings of the antivirus, maybe you can find something there, like to enlarge the limit of the permitted delivery for mails, anyway I will try to find some similar topics or a manual for this antivirus to see how it behaves with exchange.
https://forums.iis.net/t/1189895.aspx?SMTP+5+3+5+error+with+smarthost
Jun 13, 2012 · Hi All: I have an intermittent problem with SMTP delivery when trying to deliver mail to a domain on the same mailserver that's specified as the smarthost for the SMTP connector. Both the IIS server and the mailserver set as the smarthost are on the same subnet. Occasionally mail fails to be delivered with a 5.3.5 error, like this sample below.
https://support.office.com/en-us/article/Sent-email-in-Outlook-com-comes-back-delivery-failed-45e048ac-f7b1-4c0f-b525-081cb34f1062
Sent email in Outlook.com comes back "delivery failed" Outlook.com More... Less. Delivery failures, or emails that bounce or come back as undeliverable, can happen for several reasons. When you send an email and receive a delivery failure message, there could be several reasons. ... Most email service providers impose a limit on the size of ...
https://www.inmotionhosting.com/support/email/mail-delivery-failed-returning-message-to-sender/
Oct 25, 2012 · So, you sent an email and it was returned or bounced back to you with a message like: Mail delivery failed: returning message to sender Errors like this are generally encountered when there is an issue on the recipient server, or the intended recipient does not exist on the remote server.Author: Jacob Nicholson
https://docs.microsoft.com/en-us/exchange/mail-flow-best-practices/non-delivery-reports-in-exchange-online/fix-error-code-550-5-1-1-through-5-1-20-in-exchange-online
Solution 2: Remove the recipient's email address from your Auto-Complete list. ... they'll need to correct the destination email address or remove the rule in order to prevent 5.1.x message delivery errors. Solution 4: Verify that your account hasn't been compromised.
http://forums.mozillazine.org/viewtopic.php?f=39&t=2193881
Aug 09, 2011 · Sending of message failed. The message could not be sent because the connection to SMTP server smtp.telefonica.net was lost in the middle of the transaction. Try again or contact your network administrator.
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