If you suspect the problem is with the destination domain, let the administrators of that domain know. Please use the SMTP relay at your service provider instead. I sent a message and got error code 4.4.7 in an NDR. Yes No Great! http://stackoverflow.com/questions/17933863/4-4-2-smtp-error-from-one-server
I must have somehow ended up with just one. You could try setting the Glitch Retry Interval between 60 and 120 seconds. Network issues are assumed to be under the control of the destination or intermediate system administrator.
X.1.3 Bad destination mailbox address syntax The destination address was syntactically invalid. Message content or media issues are under the control of both the sender and the receiver, both of which must support a common set of supported content-types. You may get a better answer to your question by starting a new discussion. This can apply to any field in the address.
Generated Tue, 18 Oct 2016 22:17:18 GMT by s_ac4 (squid/3.5.20) Help Desk » Inventory » Monitor » Community » Sign inSearchClear searchClose searchMy AccountSearchMapsYouTubePlayNewsGmailDriveCalendarGoogle+TranslatePhotosMoreShoppingWalletFinanceDocsBooksBloggerContactsHangoutsEven more from GoogleGoogle appsMain menuG Suite Administrator HelpG Suite Administrator HelpG Suite AdministratorHelp forumForum Contact us Service Browse other questions tagged smtp or ask your own question. Learn more here. 530, "5.7.0", Must issue a STARTTLS command first. 535, "5.5.4", Optional Argument not permitted for that AUTH mode. 535, "5.7.1", Application-specific password required.
It is included in this list in the event that such segmentation is not possible. If all else fails, you can try working around the problem by relaying these messages through a remote SMTP service, like SendGrid or JangoSMTP. X.6.1 Media not supported The media of the message is not supported by either the delivery protocol or the next system in the forwarding path. Please resend your message at a later time.
The inability to connect to an Internet DNS server is one example of the directory server failure error. Also notice that Postfix is configured to wait only for 60 seconds between its last response and the next block of data, which is precisely what we are observing between these X.1.8 Bad sender's system address The sender's system specified in the address does not exist or is incapable of accepting return mail. When you see this situation, Postfix will log the following line in /var/log/maillog: timeout after DATA (0 bytes) from unknown[xx.xx.xx.xx] The best way to solve this is of course identify the
NO. http://edvinfo.com/mail-error/mail-error-550-5-7-1.html Deferred Closing connection to postfix.localdomain. Solution 2: You can test your MX record and your ability to send mail from your organization by using the Verify MX Record and Outbound Connector Test at Office 365 > X.3.3 System not capable of selected features Selected features specified for the message are not supported by the destination system.
To protect our users from spam, mail sent from your IP address has been blocked. This service will do a bunch of checks, and you'll get a report back with ton of information, such weather or not your mail server's DNS is setup correctly, whether your and G. navigate here This is useful only as a permanent error.
Join the community Back I agree Powerful tools you need, all for free. The host says " not our problem" and the UK branch of bigbusiness.com say " not our problem - you are the only one that this is happening to " so See; http://technet.microsoft.com/en-us/library/8b43be56-48e6-400b-8014-54c95f87d1de.aspx 1 Chipotle OP Winner8466 Jun 5, 2014 at 2:29 UTC I get this commonly on yahoo especially, sometimes AOL, and other domains that refuse to do
I have checked many times and we are not on any blacklist that I can tell. Solution 1: The mail exchange (MX) record for your domain may be missing or incorrect. Get more information about how MX records work within the domain name system (DNS) at DNS Solution 3: The Sender Policy Framework (SPF) record for your domain may be incomplete , and may not include all sources of mail for your domain. Also notice that the proposed changes will not affect the availability of the mail service since Postfix will not restart its main engine. # postconf -e smtpd_timeout=120s # postfix reload Where
Aggressive anti-spam settings in the destination domain that block legitimate senders, for example, all senders from any domain in Exchange Online. I'm the email admin. Still need help with error code 4.4.7? his comment is here The mail system classification includes both host and mailbox error conditions.
Solution 5: Hybrid deployment configuration issues. If your domain is part of a hybrid deployment between Exchange and Exchange Online, and the recipient is in the on-premises organization, there may be There is a pressing need for a rich machine-readable, human language independent status code for use in delivery status notifications [DSN]. If the EHLO greeting were in some way bad, the OP would probably be getting a whole lot more connections errors! :-) Given his users can, for the most part, both The enumerated values for each class are defined as: 2.XXX.XXX Success Success specifies that the DSN is reporting a positive delivery action.
These errors can generally be corrected by the sender and retried. This code should be used as a permanent failure. The second sub-code indicates the probable source of any delivery anomalies, and the third sub-code indicates a precise error condition. Example: 2.1.23 The code space defined is intended to be extensible only by standards track documents.
Deferred Closing connection to postfix.localdomain. It may be time to call in the big guns but thanks for the ideas. 0 Jalapeno OP Daniel.D. X.3.4 Message too big for system The message is larger than per-message size limit. If the problem continues, contact your helpdesk.
The possible causes of this error are: The server is offline or unreachable. Hot Network Questions Red balls and Rings Just a little change and we're talking physical education Why aren't there direct flights connecting Honolulu, Hawaii and London, UK? Distribution of this memo is unlimited. I am told that Exchange 2003 can have issues with remote servers that don't play nice.
I have corrected it.