The team handling the Exchange server (Not me) says this is already done, and blames it on my server. postfix smtp email-server sendmail share|improve this question edited Jul 26 '14 at 23:59 Andrzej A. Browse other questions tagged postfix smtp email-server sendmail or ask your own question. I understand that something is wrong with my Exchnage 2007 server but I do not know what is went wrong. http://mixtecadigital.com/unable-to/unable-to-relay-for-in-reply-to-rcpt-to-command.html
The setup looks like this: Ubuntu server needs to relay all emails to an Exchange 2007 machine and let that server do the work. Browse other questions tagged exchange smtp authentication or ask your own question. Privacy statement © 2016 Microsoft. But still not a valid excuse :) permalinkembedsaveparentgive gold[–]LancelotLink 1 point2 points3 points 3 years ago(0 children)Did they set up the relay on an alternate port?
Thanks for the hint! Where is the Abbey of the Albertian Order of St. linuxserver.mydomain.local (10.220.10.104) is the primary MX recieving all communication to port 25 on remote.mydomain.no (the primary MX host for mydomain.no). The reason I am asking about this is because the vendor we are troubleshooting with (the recepient) is quoting the above error as the reason why they cannot get email from
SSH into many systems with passphrase-less RSA keys The female equivalent of "don't break my balls" Are zipped EXE files harmless for Linux servers? see: http://en.wikipedia.org/wiki/Open_mail_relay Of course this isn't of as much concern if TCP 25 (SMTP) on your mail server isn't open to the Internet. Help Desk » Inventory » Monitor » Community » FAQ Forum Quick Links Unanswered Posts New Posts View Forum Leaders FAQ Contact an Admin Forum Community Forum Council FC Agenda Forum 550 5.7.1 Unable To Relay Office 365 Related reddits: /r/sysadmin - general sysadminny stuff /r/sysadminjobs - jobs for sysadmins /r/linux4noobs - for general questions /r/linux_mentor - guides and howtos /r/devops - put some dev in your ops Footnote:
This setup has worked just fine for a long time, but recently I've been having trouble with what looks like spam-messages sent from internal users. But not externally. I can recieve Emails with no problems but when I try to send email from my outlook I receive an email with this message : ......blha blha blha ......"said: 550 5.7.1 I have tried to telnet test to my servers and get 5.7.1. … I have tried the configuration described above with no luck.
Thank for the solution. Server Error 550 5.7 1 Unable To Relay Outlook 2013 In case anyone else wonders; this is what I did: Create /etc/postfix/sender_access: Code: mydomain.no REJECT Code: sudo postmap hash:/etc/postfix/sender_access edit /etc/postfix/main.cf and add the following: Code: smtpd_sender_restrictions = check_sender_access hash:/etc/postfix/sender_access For at System.Net.Mail.SmptTransport.SendMail(MailAddress sender, MaiAddressCollection recipient, string deliveryNotify. It seems to work very well, but of course a setup where malicious emails never reach the vulnerable Windows boxes would be preferred.
Thats fixed my problem but I did not understand something... Copyright © 2014 TechGenix Ltd. Smtp 550 5.7.1 Unable To Relay I build my implementations from source, but there was a .deb for hardy. 550 5.7.1 Unable To Relay Exchange 2013 Why do manufacturers detune engines?
Anti Spam Articles Authors Blogs Books Free Tools Hardware Hosted Exchange Links Message Boards Newsletter Services Software Tips Webinars White Papers About Us : : Product Submission Form : Advertising Information this contact form The more typical setup for outgoing messages: Outgoing messages: Exchange ==> Postfix ==> External Mail Server Incoming messages: External Mail Server ==> Postfix ==> Exchange permalinkembedsavegive gold[–]burning1rr -1 points0 points1 point 3 years In our ticketing system which is service desk, I gave our exchange name to send and receive email. They are designed to do exactly what you're trying to accomplish here. 550 5.7.1 Unable To Relay Exchange 2007
WServerNews.com The largest Windows Server focused newsletter worldwide. What are the tax implications? I use sendmail and block such messages in its /etc/mail/access database. have a peek here I use the excellent MailScanner on a Linux box to scan all mail.
The first one is obviously more secure.Tags Exchange Network Infrastructure Systems Comments (15) Cancel reply Name * Email * Website Anonymous says: December 23, 2016 at 5:04 am Dear 550 5.7.1 Relay Access Denied You need to either tell the Exchange machine to relay mail it sees coming in from the Postfix machine, or tell the Postfix one to not send external mail through the Why is this required for your application? What's the goal, perhaps there is a better way? It's considered bad practice to setup a mail server to relay anything but explicitly defined
Fixed it now. If you choose to participate, the online survey will be presented to you when you leave the Technet Web site.Would you like to participate? Unless you enjoy sending out millions of emails on behalf of spammers, DON'T use the "all except the list below" option. Filip 3,4111519 Thanks.
Mail started flowing. So my question is: How do I make postfix reject all external mail that does not have a local address in TO, and if necessary reject all incomming mails that has Microsoft did this on purpose, because best practice is, anyone or anything sending email should have a proper AD account and mailbox setup, but in the real world we know this With smtpd, I can write a rule like this: Code: deny:ALL:[email protected]:ALL and any inbound mail claiming to be sent from my domain is blocked at the doorstep.
Where do you scan inbound mail for spam and viruses now?