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https://www.hmailserver.com/forum/viewtopic.php?t=3027
Jul 22, 2008 · First I tried ArGoSoft Mail Server to send the message. It succeeded and I'm able to receive the email. ... 550 Delivery is not allowed to this address." "SMTPD" 172 "2005-11-14 21:56:13.553" "127.0.0.1" "RECEIVED: QUIT" ... Then the address [email protected] will be a local account and delivery will be allowed. Top. GlenC Senior user Posts: 680
http://myitengineer.com/hmailserver-smtp-protocol-error-550-delivery-is-not-allowed-to-this-address/
May 05, 2016 · You attempt to send emails via HMailServer and receive the following error: SMTP protocol error: 550 Delivery is not allowed to this address. Cause. Sending emails to the HMailServer from a different host is prevented by default as this could result in spamming. Solution. Go to settings => advanced => IP Ranges =>Internet
https://stackoverflow.com/questions/12495509/mail-smtp-server-response-550-the-address-is-not-valid-error-on-hmailserver
I know it is valid because it works when I send it from squirrel mail but when sending mail in php it will just not work. the invalid address presumably refers to the send_from address. so I can't see how it can think it's wrong. here is the php code:
https://bobcares.com/blog/550-email-blocked/
Sep 29, 2018 · It's attached below. The mail system : host smtp.recipient.coml[XXX.211.XXX.31] said: 550 Email blocked by hostkarma.junkemailfilter.com (in reply to RCPT TO command) It means that the recipient’s mail server smtp.recipient.com rejected the mail from mx.sender.com because the spam filter at junkemailfilter.com classified the mail as spam.
https://www.hmailserver.com/forum/viewtopic.php?p=196733
Jul 04, 2017 · Is seems to be a read receipt, hence the empty sender address (MAIL FROM: <>) ... If the receiving server doesnt like blank FROM addresses and it bounces/rejects, then who will get the NDR? mailer_daemon@theauthenticationdomain ? ... 550 Delivery is not allowed to this address. Post by RvdH » 2017-07-04 09:07
https://serverfault.com/questions/837329/smtp-error-550-delivery-not-allowed-to
The created email address is working fine. I mean I can login to the mail server and check the inbox of this user (the moodle). Also, there is a plugin for testing the setting. The log shows that delivery is not allowed and I don't know which side is causing such a problem, either the mail server admin or …
https://support.3dcart.com/Knowledgebase/Article/View/2/1/can-not-send-email-using-outlook-error-550-not-local-host-not-a-gateway
Can not send email using Outlook (Error: '550 not local host, not a gateway') ... The mail server is generally smtp.yourISPname.com, however, it could be different so please contact your ISP to get the details. If you do not want to use your ISPs server for SMTP, and the ISP is blocking port 25, you can switch the port to 587 for your outgoing ...
https://answers.microsoft.com/en-us/msoffice/forum/all/550-50350-remote-server-returned-an-error-550/801d4010-d8c2-43d4-bd20-8ff2c18262a7
Oct 02, 2017 · Tech support scams are an industry-wide issue where scammers trick you into paying for unnecessary technical support services. You can help protect yourself from scammers by verifying that the contact is a Microsoft Agent or Microsoft Employee and that the phone number is an official Microsoft global customer service number.
https://docs.microsoft.com/en-us/exchange/mail-flow-best-practices/non-delivery-reports-in-exchange-online/fix-error-code-550-5-7-1-in-exchange-online
Delivery: If Route mail through smart hosts is selected, confirm the correct IP address or FQDN is specified. If MX record associated with the recipient domain is selected, confirm the MX record for the domain points to the correct mail server.
https://bobcares.com/blog/550-is-not-allowed-to-send-mail-from/
Using SPF, mail servers will check if an incoming mail is sent from an “authorized” mail server. For this it uses a DNS record called SPF. SPF records are set by default by many hosting providers, and contains the website’s IP address (A record) and the domain’s mail server IPs (MX records).
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