Simple Mail Transfer Protocol (SMTP) relaying (transferring between computers).

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Postfix dosen't forward to Gmail Yahoo Hotmail

I have a problem with my Postfix 2.8.4 (Cent OS 6 with Plesk 11.0) If i sent an email to one of these providers, it will be delivered ok. If I setup my email to forward all emails to one of these ...
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1answer
97 views

Postfix: don't bounce for remote rejects

I'm having a problem with sending bounces to spammers when a remote "trusted" smtp server rejects a mail. My server manages mail for company1.com that has a virtual alias support@company1.com that ...
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112 views

Exim Unauthorized Send

I need your help on something. I was going over our eximstats database, in particular the send and smtp tables, when i found something alarming. There a literally hundreds of thousands of entries ...
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26 views

List the bounce back email ids - .net

I'm sending a mail to bunch of email IDs. Once the emails are sent, I need to display the notification - saying how many successful mails were sent and how many to which mail IDs the email was bounced ...
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1answer
59 views

Hook into sendmail

I have an app on a server that sends mail via the local system's 'sendmail'. I want to write a program that takes the payload of the message, modifies it, and then sends it on to the original ...
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51 views

Configure exim4 to send mail from valid user?

I am trying to configure exim4 on a new server. Till now I have been able to make it up and running with TLS enabled and SASL authentication. My update-exim4.conf.conf looks like: ...
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2answers
221 views

Exchange 2013 Internal Relay via Smart Host

Thank you for your help in advance! I am currently setting up an Exchange 2013 server, to replace our old POP3/SMTP system, however we would like to roll this out gradually when convenient for our ...
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100 views

SMTP relay anti-relaying and LIMIT/QUOTA

I need some help to face this problem. I have 2 LAN connected to the same router. My first LAN is the office LAN and left on the internet with one public IP address. My second LAN is the datacenter ...
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1answer
88 views

How does domain name resolution work for SMTP relay services?

Having problems with the default e-mail provided by a shared host (blacklisting and quotas), so I'm looking into SMTP services to handle outbound mail instead. However, one thing that I haven't been ...
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1answer
163 views

How can I configure Postfix to ignore relayhost when forwarding mail?

How can I configure Postfix to ignore relayhost when forwarding mail? I currently use the relayhost to send all outgoing email via an external SMTP service : # /etc/postfix/main.cf relayhost = ...
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320 views

How to forward to dynamically determined addresses with Postfix?

Each message to a local user must go to an address that is obtained by running an external command. That command will look at the local address tag, make API calls to several processes, and then ...
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1answer
43 views

Internal SMTP server + Hosted E-mail possibiilty

We currently use a 3rd party hosted e-mail system using SMTP and IMAP. I was curious is there a way to setup an internal SMTP gateway or server that the internal client can connect through to ...
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2answers
98 views

SMTP server to smtp server forwarding?

we have one smtp server and we want incoming mail should store by smtp and forward two other smtp server is their any solution we dont want email forwarding Ex mail@mail.com to amail@mail.com ...
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1answer
227 views

postfix relayhost 'Recipient is not recognized. Relay access denied'

im trying to get webmin postfix to send emails through my smtp account with another email provider (in this case lavabit.com) im getting the error 'Recipient is not recognized. Relay access ...
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1answer
123 views

Postfix - sender dependent configuration based on client IP instead of email address

Using Postfix, I want to setup the transport according to the sender IP. There is sender_dependent_default_transport_maps, which does it according to the sender email address (envelope MAIL FROM). ...
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1answer
440 views

Google Apps + Mailgun Split Delivery

We currently use Google Apps for receiving emails on our domain. We would like to send all mail to unknown addresses to our Mailgun server for further processing. This seems like a typical "split ...
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1answer
480 views

Telnet to SMTP gets no 220 response unless user is specified

My server is setup to generate outgoing email only (no receiving), and is timing out when attempting to contact smtp.foo.com Essentially the email is generated by a process on myserver.foo.com, sent ...
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1answer
91 views

Possible spam emails from our server but not from our domains

I encountered something weird with my mail server. For about 3 days now I am noticing that my mail server sending emails that aren't included in my domains. There are from different IPs different mail ...
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215 views

SMTP relay to Exchange Online - won't work without remote domain smarthosts?

We've got an on-premise SharePoint farm that sends and receives email via an SMTP instance on one of the servers which relays to our on-premise Exchange. We're in the middle of a migration to ...
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2k views

554 Relay access denied

I set up a mailserver yesterday according to this tutorial: http://wiki.hetzner.de/index.php/DebianMailserver3 (tutorial is in german). Sending emails is working fine, recieving emails from other ...
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1answer
203 views

How to have Postfix send email to another server if user lookup fails for specific domains

Currently my server acts as a gateway, checks AD for valid email addresses, if the email address exists in exchange it sends over the email, otherwise just rejects (typical) I need Postfix to send ...
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1answer
110 views

Postfix Transport Not Getting Triggered

I have ServerA and ServerB - I'm moving accounts from A to B but I want ServerA to relay any mail it receives to ServerB to make sure no mail gets lost after I have copied mailboxes over while DNS ...
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1answer
158 views

RAID Card Event Notifications Email to Gmail

I need to get email for event notifications from our RocketRaid 2782. The problem is I don't see a way to get it to send mail to our google apps gmail account. I don't think the card offers ...
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1answer
149 views

Postfix: Ignore relay host when from specific address

I configured my postfix server to relay all received mails to smtp.example.com with relayhost. This server doesn't accept mails from an external source. So only scripts are sending mails. Is it ...
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1answer
447 views

Postfix enable sending to any domain in the Internet with authentication but no SSL

When I try to send a mail by SMTP and Postfix I got a error "5.7.1 unable to relay". After lot of config changing it worked for me to send email to the same domain as server (to other accounts on ...
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98 views

Attach BCC to all emails processed through Windows Server 2008 SMTP relay

I currently have a relatively complicated application that sends emails via a nightly job through an SMTP server on Windows Server 2008. Is there a way to configure IIS/SMTP to send a copy of every ...
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1answer
765 views

Cannot send email outside of network using Postfix

I've set up an Ubuntu server with Request Tracker following this guide (the section about inbound mail would be relevant). However, while I'm able to send mail to other users within the ...
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1answer
284 views

Mail forwarding to external domain - BT, Exchange 2010

Thanks in advance for any help, this is not a basic mail forwarding question there is in fact a twist. We are trying to forward mail from an address at our domain john.example@ourdomain.com to ...
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135 views

Redirecting emails through rules - SMTP proxy?

I need advice on how to achieve the following: I have various systems and services that output log error messages to some email address. e.g. error-logs@[my company] I want to be able to define ...
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1answer
82 views

Want to store To,From,Bounce,and mailstatus in sql database?

On my postfix relay server i want that postfix do not create /var/log/maillog file and directly store To, From,Bounce Address and mail status directely in sql server database. How can i do this ?
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249 views

server 2008 std sp2 - setting up smtp relay - mails queue then move to badmail

I am trying to set up a smtp relay on one of my domain controllers. The server runs server 2008 SP2. I tried to set this up forever ago and had to work on something else so now i'm back to hopefully ...
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1answer
792 views

DKIM on postfix relay server

I have a postfix/amavis relay server, with the domain name mail.example.com. It will be a relay for dozens of VPS's, which will have domains like hostname.example.net. So i have actually two ...
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1answer
778 views

configure standard sendmail install to accept outside connections and forward mail to gmail account

I want to have some mail accounts on my domain (contact, webaster) redirected to my gmail account. In order to do this I installed sendmail. Default install (apt-get install sendmail on ubuntu ...
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1answer
174 views

Proper configuration for Windows SMTP Virtual Server to only send email from localhost, and tracking down source of spam emails

We manage a server that is hosted on Amazon EC2, which has web applications that need to be able to send outgoing email. Recently we received a notice from Amazon about possible email abuse on that ...
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1answer
190 views

Is there are postfix setting to disable prepending a sender path in the Received: header?

Currenty emails are sent/received as : Received: from localhost.localdomain (sender.host [xx.xx.xx.xx]) by smtp.host (Postfix) with ESMTP id 7F6CC67897 for <mail@example.com>; Thu, 19 ...
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1answer
577 views

Postfix connects to wrong relay?

I am trying to set up postfix on my ubuntu server in order to send emails via my isp's smtp server. I seem to have missed something because the mail.log tells me: Jan 19 11:23:11 mediaserver ...
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1answer
335 views

relay mail from one postfix server to another

I'm attempting to use just 1 postfix instance to input ALL my outgoing mail. From there the goal is to relay it to my one of the many outbound postfix instances. I do this using round robin dns so it ...
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1answer
4k views

How to solve authentication error in sendmail relay through gmail [closed]

I followed the steps in http://www.linuxha.com/other/sendmail/gmail.html to setup gmail in send mail. But when I try to send mail I got the authentication failure message. —– Transcript of session ...
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4answers
4k views

Google Apps as SMTP relay?

We have linked the domain of our company to Google Apps and we also have a Kerio Connect (mail server) installed in our company which uses Google as SMTP relay. As google requires SMTP authentication ...
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1answer
424 views

Need help diagnosing “User unknown in virtual alias table”

I'm using virtual alias maps to relay mail and I keep having some of the entries bounce. Postfix seems to know where they are supposed to go and when I run postmap -q for virtual_alias_maps and ...
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1answer
156 views

Use sendmail as client for relaying mail

I'm trying to use an account on my central mail server to send all mails from other boxes. My central mailserver is itracknetworks.ca and I have an account there at testuser@itracknetworks.ca. I ...
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1answer
241 views

Relay Access Denied with virtual_alias_maps in postfix

My postfix server is encountering a problem with a couple domains bouncing email. The error message is: postfix/smtpd[2673]: NOQUEUE: reject: RCPT from mail.foo.com[xxx.xxx.xxx.xx]: 554 5.7.1 < ...
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1answer
1k views

Postfix: 5.7.1 Relay access denied

I hope I can become help here with my problem. I can't send E-Mails. I get only the error message: 5.7.1 Relay access denied my postconf: append_dot_mydomain = no biff = no ...
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0answers
387 views

Configuring SMTP server with PHP / IIS6 / Joomla

I'm trying to configure PHP, Joomla, IIS6 and Windows Server 2003 to play ball with a new SMTP server that I've been told is replacing our existing setup. I've tried the following: PHP: Set php.ini ...
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0answers
362 views

Postfix: relay_recipient_maps only for a subset of relay_domains

I have a setup of several frontend (MX) postfix servers using relay_domains. Some of the relay_domains are hosted on a postfix backend server that has the mailboxes. The other relay_domains are of ...
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1answer
348 views

Configuring a Postfix backup server

I have a subdomain subdomain.mydomain with two servers server1.subdomain.mydomain and server2.subdomain.mydomain running CentOS 5.5. server1 runs a Postfix server for subdomain.mydomain that acts as a ...
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1answer
516 views

Postfix rewrite header issue

I currently relay all my cPanel (exim) outbound emails through my Postfix server. However, postfix seems to remove some important part in the header that exim added before sending to relay. As ...
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167 views

SBS 2008: Did something change with anonymous relays?

Have noticed that prior documentation on setting up anonymous relays in SBS 2008 no longer work without some additional configuration. Used to be able to follow this documentation, which is ...
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2answers
494 views

Emails From Our Website No Longer Received - hMailServer SMTP Relay

I'm troubleshooting an issue where we no longer receive the emails that come from the form on our website. This problem started this morning after installing a SonicWall TZ-210 router but I'm not ...
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1answer
246 views

Postfix Relay: An Entire Domain

Goal: Need to forward all mail destined for users @ domainA.com to users @ domainB.com. Using GApps for domainB.com. I setup a postfix relay that domainA.com's MX records point too. Able to send ...