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https://www.inmotionhosting.com/support/email/email-error-553/
Oct 26, 2012 · Hi all. I have problem with my outlook 2007, this case i can connect to zimbra pop3 by outlook but cannot send out. i already use smtp port 25, 465 and 587 but still cannot send out the msg. this is the content msg “Send test e-mail message: The server responded: 553 5.7.1 <example.mail@domain.org”Author: Jacob Nicholson
https://support.office.com/en-us/article/I-receive-a-550-553-or-relay-prohibited-error-when-sending-email-messages-65b494a4-0a15-433e-829f-e73651e0245e
You're attempting to use your home ISP's SMTP (outgoing) server while not connected to the ISP network. The SMTP server can't validate you as an authorized subscriber of the ISP. In addition, you're asking that SMTP server to take your message and then connect to another SMTP server for delivery to the recipient's mailbox.
https://community.broadcom.com/symantecenterprise/viewthread?MessageKey=74f09287-edb3-40a8-9c12-915b7a003f5d&CommunityKey=bba1e9dc-0c56-4fb5-9e3d-ef7f0d79b7ee&tab=digestviewer
Nov 13, 2008 · DELIVERY FAILURE: 553 sorry, invalid HELO hostname(#5.7.1) 0 Recommend . Migration User. Posted 11-01-2008 02:40 PM. Hi there, I am running a Lotus Domino with Symantec Mail security 5.0.1(separate boxes) With patch 189 installed on a win2k3 box. It handles all the inbound & outbound mails for our domain.
https://itknowledgeexchange.techtarget.com/itanswers/delivery-failure-error-553/
Jul 29, 2009 · It seems that the server ip address is black-listed. You need to contact you ISP to resolve this. You can get more help by visiting the page mentioned in the bounce message.
https://support.office.com/en-us/article/Sent-email-in-Outlook-com-comes-back-delivery-failed-45e048ac-f7b1-4c0f-b525-081cb34f1062
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.
https://answers.microsoft.com/en-us/outlook_com/forum/oemail-osend/delivery-failure/d1a95bad-2124-4edf-a1f0-ea1808e1cf30
May 10, 2017 · This just started happening yesterday. I'm getting Delivery Status Notification (Failure) messages to known good email addresses I sent to in previous days. The following is the Diagnostic-Code to the last Delivery Status Notification (Failure): 5.7.1
http://www-10.lotus.com/ldd/nd6forum.nsf/55c38d716d632d9b8525689b005ba1c0/932b38f516c95f2a852570ce00222b69
Dec 05, 2005 · Notes/Domino 6 and 7 Forum Delivery Failure 553. Previous Next: ... Whenever one of our user try to send a mail to a particular user in other domain he gets a delivery failure '553 "our server public IP address".* mail rejected due to excessive spam'. He can send mails to other users in that domain whereas other users from our domain can send ...
https://www.godaddy.com/community/Managing-Email/Message-Delivery-Failure/td-p/156433
I'm emailing a contactand keep receiving a bounce back message. They have logged my email account as "safe" within their system and it doesn't resolve the problem. It looks like they have a Symantec email overlay within their system. Not sure if this is causing the issue or not. Anyone else run ...
https://support.oracle.com/knowledge/Middleware/2425238_1.html
Jan 18, 2020 · Oracle SOA Suite - Version 12.2.1.3.0 and later: DELIVERY_TO_GATEWAY_FAILURE 553 Local User Only
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