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

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1answer
36 views

SMTP routing cases: same @domain as sender and different @domain

I would like to know what is the difference between sending an email to the same @domain as the sender and sending to a different domain. I cant really find a detailed explanation on the web. From ...
2
votes
1answer
168 views

SMTP Event Sinks in Windows 2008 R2

We use a 3rd party software to send Bulk Emails. The software does not provide options to add Email addresses in BCC. However, as per Compliance Rules, it is necessary for us to add a BCC address to ...
1
vote
1answer
40 views

SMTP as SmartHost for SendMail

My general task is following: We have workable application that sends mails to the users (that are registered in this application on some actions); Mails are sending using sendmail tool; In order to ...
1
vote
1answer
106 views

Dual delivery Google Apps and Postifx (server reject mail from my domain on google)

This is the scenario: I have a server with Postfix and some domains, and now, one of this domains want to use Gmail Google Apps only in a couple of accounts. The end-user configure the domain with ...
1
vote
1answer
121 views

Exchange 2007 Server - Sender unable to send one recipient in the domain

I have a mail server that serves multiple domains. I have 2 users that use a specific domain. User A does not experience any issues when sending and receiving mail. User B can send emails fine and ...
1
vote
1answer
560 views

Mailx not sending emails

Using CentOS 5.6 and trying to send (only) emails to remote boxes. I am on a CentOS client box and trying to send email to my road-runner email account. mailx -s "Some Subject" me@tx.rr.com < ...
1
vote
1answer
454 views

Postfix relaying : email to multiple addresses with one relay

I have postfix installed on an ubuntu server so my website can hand it email to relay onto sendgrid.net. Before I installed postfix I setup swiftmailer to send the email directly to sendgrid.net, and ...
0
votes
1answer
21 views

Postfix on two servers. Can I route all mail though just one of them?

I have at least two web servers which utilise Postfix to send mail from web applications. One is what I call the 'master' which will remain static and the other is what I call the 'slave', which is ...
0
votes
1answer
14 views

Using IIS smtp for incoming and outgoing and use hMailserver for mail accounts

I have installed hMailServer in one machine and IIS STMP in another machine. Even though hMailSever itself is a SMTP server. I can't avoid this because the IIS SMTP server has some hooks which which ...
0
votes
1answer
89 views

Postfix: mail delivered locally, but I wanted relayhost delivery

I work at example.net :-) and my team's server is named tardis.example.net . Any mail sent to us must first go through our company's internal relay hosts. Although the messages are delivered to our ...
0
votes
1answer
357 views

554 5.7.1 <mail_addr>: Relay access denied centos postfix

I have problem in send mail from postfix in centos I have following setup mail server postfix for sending mail but I am getting error. As in the link I tried following commands telnet localhost ...
0
votes
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 ...
0
votes
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 ...
0
votes
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 ...
0
votes
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 ...
0
votes
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). ...
0
votes
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 ...
3
votes
0answers
635 views

Postfix sasl relay host - weird behaviour

Previously I had a relayhost set in postfix to mailhost.zen.co.uk - I don't think it accepts SASL - only TLS. So I though I would try changing to a different relay host. However, the following log ...
2
votes
0answers
168 views

How to identify the user/computer that is relaying spam through a mail server?

For the past couple of days, at certain intervals, a huge load of email is dumped on my Exchange 2003 server and relayed out until it gets blacklisted everywhere. Nothing like this happened for many ...
2
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0answers
28 views

I need to set-up the blocked machine to relay to the unblocked machine using a different port

I have two Windows Server 2003 machines sitting in a network. Server B has port 25 open and can relay emails to the local network's smtp server. Server A does not have port 25 open. How can I set it ...
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0answers
28 views

Postfix transport relay based on result of MX lookup

You can tell postfix to relay all mails for *@gmail.com via your account on smtp.google.com using transport maps: # /etc/postfix/transport gmail.com smtp:[smtp.gmail.com]:587 . # ...
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0answers
97 views

multiple login credentials for same relayhost

i struggle with my postfix config. i want to use the same relayhost for my two domains, but i have different credentials on the relayhost. is there a way to tell postfix to use two different login ...
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0answers
76 views

Postfix sometimes ignore sasl_passwd

I have a server (server1) configured to use a relayhost (server2), with a specific username and password. server2 is another of my servers. server1 configuration: /etc/postfix/main.cf: relayhost = ...
1
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0answers
247 views

What are the values of Exchange's XSHADOW and XQDISCARD commands?

Shadow redundancy is an Exchange-specific feature (beginning with Exchange 2010) that provides a measure of fault tolerance when relaying email messages with SMTP. The sending Exchange server sends ...
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0answers
141 views

Postfix: Modify sender address based on recipient

We have a Postfix server that receives mail from our application servers. Senders are in the form user@host.fqdn (where host.fqdn can vary, depending on source server) and recipients can be internal ...
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0answers
642 views

530 5.7.1 Client was not authenticated Exchange 2010 for some computers within mask

We have a classic problem with Client not Authenticated but with a specific twist: We have an Exchange 2010 cluster, let's say EX01 and EX02, the connection is always to smtp.acme.com, then it is ...
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0answers
134 views

IIS 6.0 and Virtual SMTP relay ~ some messages are bouncing

I will give a quick overview and then the details. I have a Exchange 2003 environment that I have been asked to slap on a disclaimer on all outgoing mail. So I have setup a Windows 2003 server and ...
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0answers
319 views

Configure Exchange 2007 to Route Messages for Shared Address Space

I have a strange problem with Exchange 2007, the company has two separate offices, one with SBS 2008/Exchange 2007 installed, the other does not have a server and uses our pop3 service from our web ...
0
votes
0answers
34 views

Handing E-mail Bounce Back in IIS, Setting up SMTP

Our servers send e-mails from @example.com to customers, clients, etc. We use Google Apps for our domain to send and receive additional e-mails from @example.com. Now, we're trying to handle e-mails ...
0
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0answers
17 views

Issue with Russian Characters using IIS6 SMTP Relay

We have an issue where we have an issue with Russian Characters in the body of emails when using IIS6 SMTP Relay on Windows Server 2008 R2. The relay points to an email provider. The characters ...
0
votes
0answers
40 views

Rely Access Denied From Gmail To Postfix

I setup Postfix/Devocot on my server. Every thing is going well. Email is perfectly send from postfix to gmail or other mail servers but when I test the email from gmail to my server gmail through and ...
0
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0answers
78 views

Postfix is ready for connection but does not send queue

Recently I've had problem with delivering outgoing mails through postfix. I use vps with postfix and dovecot generally as smtp server. It's very important to us emails to deliver email as stable as ...
0
votes
0answers
28 views

Mail server in the middle responsible for translating from one domain to another

The title is a little confusing. We have an internal mail server that can be used to send mail. This internal mail server is only accessible from within our firewall unless we use the mail server's ...
0
votes
0answers
12 views

MailEnable Forgoes Authentication for Local Recipients

I am running MailEnable 2.x on a rather active production server. I blocked any ability to send unauthenticated email through the server, and (in theory) turned off all domain spoofing abilities. ...
0
votes
0answers
55 views

Postfix smarthost with diffent relayhosts and sender dependant authentication

I've setup postfix as smarthost with different relayhosts and sender dependant authentication. Everything works ok, but I have a performance question. Is it better to send all the email corresponding ...
0
votes
0answers
31 views

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 ...
0
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0answers
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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0answers
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 ...
0
votes
0answers
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: ...
0
votes
0answers
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 ...
0
votes
0answers
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 ...
0
votes
0answers
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 ...
0
votes
0answers
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 ...
0
votes
0answers
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 ...
0
votes
0answers
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 ...
0
votes
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 ...
0
votes
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 ...
0
votes
0answers
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 ...
-1
votes
0answers
32 views

5.1.2 recipient address rejected: user unknown

We are trying to send e-mails from our ASP.NET website (which is on external ISP). We can send internal e-mail addresses but when we try to send external emails like gmail, yahoo getting following ...
-1
votes
0answers
26 views

apache james mail server load balancing

I have a apache james 2.3.2 server setup in a windows server. Mail server works fine and able to send and receive mails. Also able to see the mails in respective mail directories in that server. Now I ...