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https://www.hmailserver.com/forum/viewtopic.php?t=3027
Jul 22, 2008 · Re: 550 Delivery is not allowed to this address Post by gotzboost » 2008-07-22 21:36 brucestr21 wrote: it doesn't look like you have any domains in hmailserver (or possibly an incorrect domain), hence why checking 'external to external' works.
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://www.hmailserver.com/forum/viewtopic.php?p=196733
Jul 04, 2017 · Re: 550 Delivery is not allowed to this address Post by mattg » 2017-06-20 13:07 FWIW I have allow external to external with Auth on my internet IP range, and have always done that, but then I have a script that says that FROM must equal the Authenticated account
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://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://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://bobcares.com/blog/550-email-blocked/
Sep 29, 2018 · I'm sorry to have to inform you that your message could not be delivered to one or more recipients. 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)
https://bobcares.com/blog/550-is-not-allowed-to-send-mail-from/
Error "550 is not allowed to send mail from" is caused when the sender's IP is not present in SPF records. Here are 3 cases it can happen how to fix them.
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://www.axigen.com/forum/forum/support-discussion-lists/webmail/2199-550-delivery-not-allowed
Hello, Note that generally when your IP is blacklisted then you will not be able to send emails to external MTAs because their Antispam policies will refuse your messages, because the originating IP (your MTA host IP) is present on a certain Blacklist that is used for filtering by that provider. Also we performed the following test: dig mx greenfield.com.ph +short 10 mail.greenfield.com.ph ...
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