Tagged Questions

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

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2answers
196 views

SMTP Relay to capture attachments

Does anyone know of FOSS solutions (or general information) on setting up a Linux-bases SMTP mail relay that can do the following: Detect if a message has an attachment if so, save the attachment to ...
2
votes
1answer
667 views

IIS SMTP Relay to Google Apps adds header to e-mail body

I have an IIS6 SMTP set up to relay e-mail for applications on my intranet that does not support TLS to a Google Apps e-mail account per this tutorial. For the most part it is working great, but when ...
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2answers
758 views

How can I send email notifications from an app that does not support TLS when my service requires TLS?

We have recently changed the email services. The previous service allowed us to make SMTP connections without TLS. The new service requires TLS. We have a couple applications that need to send ...
1
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1answer
740 views

Sendmail: Have to add NAT IP to access list to relay, why?

I have sendmail set up with smarthost to Google Apps (using AuthInfo in /etc/mail/access for authentication). I noticed last night that e-mail was not going through. I send an e-mail like so: echo ...
2
votes
1answer
2k views

Sendmail relaying denied despite successful authentication

I don't have a lot of experience with maintain a mail server, but in spite of that I must configure sendmail as a MTA for one of my servers. I have a problem where sendmail responds to the MUA that is ...
2
votes
2answers
101 views

Upgraded Postfix, Relay Is Broken Now

I upgraded from Debian 5 to Debian 6, and in doing so went from Postfix 2.5.5 to 2.7.1. I'm using MySQL as a backend for virtual domains/mailboxes. After the upgrade, I'm able to receive mail from ...
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2answers
2k views

Postfix refusing to relay mail from local client

I'm trying to get a python script to send mail (using smtplib.SMTP), but postfix is refusing to relay the message. I don't use the Ubuntu 10.10 Virtualmin server as a mail server (I happen to use ...
1
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1answer
479 views

Postfix smtp relay with mysql autentification. How to?

I have a Centos 5 mail server setup with postfix and dovecot (+ postfix admin). Dovecot autentification is trough mysql database (which is updated with postfix admin). Passwords are stored in md5. ...
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1answer
408 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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2answers
3k views

Postfix relays via gmail, FROM email is wrong

I recently set up a home-server. And since my ISP quite annoyingly blocks outgoing port 25 I can't setup the SMTP properly. So I set it to relay via gmail(I don't send a lot of mails by this server ...
0
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1answer
346 views

Understanding sendmail logs

So yesterday we found out that one of our old pop servers had been hacked and was sending out spam. We promptly took care of the situation and it would seem that it's all taken care of. I've been ...
1
vote
1answer
758 views

How to get rid of messages addressed to not existing subdomains?

I have small problem with my sendmail server and need your little help :-) My situation is as follow: User mailboxes are placed on MS exchanege server and all mail to and from outside world are ...
0
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1answer
561 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 ...
2
votes
2answers
110 views

Does a receiving mail server (the ultimate destination) see emails delivered directly to it vs. to an external relay which then forwards them to it?

Let's say my users have accounts on some mail server mail.example.com. I currently have my mx record set to mail.example.com and all is good. Now let's say I want to have mails initially delivered ...
0
votes
2answers
535 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 ...
1
vote
1answer
511 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
174 views

postfix SMTPD relay problems while sending

Hello My server is Ubuntu LTS 10.04 Installed and configured postfix with sasl, courier and virtual domains with mysql behind them. everything is working except for sending of email to outside ...
1
vote
1answer
552 views

SMTP Connector for SBS 2008 (1and1 and rogers are not working)

I need an SMTP connector for my SBS 2008 server. The Domain/DNS is registered with 1and1 but due to recent issues they are being blocked by a lot of servers now. 1and1 also does not give me enough ...
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3answers
2k views

How do I secure smtp in exchange?

We currently run windows server 2003 with exchange mail, but have been blocked with spamhaus.org even though we don't send out spam mail. My question is, what settings do I need to set with smtp to ...
0
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3answers
1k views

The server response was: sorry, relaying denied from your location - Windows Server 2008

I am finding a problem sending email from my .NET application. Server Error in '/' Application. Mailbox name not allowed. The server response was: sorry, relaying denied from your location [X.X.X.X] ...
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3answers
1k views

Postfix: Relay access denied

When I telnet to my server thats running postfix and try to send an email: MAIL FROM:<someuser@mydomain.com> #=> 250 2.1.0 Ok RCPT TO:<me@gmail.com> #=> 554 5.7.1 ...
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3answers
7k views

Sending mail from Postfix via Gmail: unable to get local issuer certificate, certificate not trusted, No worthy mechs found

System specs CentOS 5.5 Postfix 2.3.3 Scenario I've been following Configure Postfix to send/relay emails Gmail (smtp.gmail.com) via port 587 to try and get the connection between Postfix and ...
0
votes
1answer
5k views

Allow certain IP(s) to send almost any e-mail through Exchange 2010

We recently migrated form Exchange 2000 (yes I know...) to Exchange 2010 and went through the horror of configuring it. First of all we don't use ForeFront, sadly(?) we can't. Before I ask my ...
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3answers
1k views

Allowing Sharepoint to relay email through Exchange

I have written a Sharepoint 2007 web part that sends a field from a form to a specified email address. I have got the form working as I require, but at present it can only send to internal email ...
2
votes
2answers
391 views

Smtp relay service recommendation to increase deliverability [closed]

I need a recommendation for a email relay service to use on multiple domains with C#. I don't want to worry about blacklisting and am looking for increase deliverability on confirmation emails etc. ...
0
votes
1answer
274 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 ...
0
votes
1answer
284 views

Open Relay for internal IPs

How do I enable SBS 2008 and exchange to send mail via SMTP without authentication? I have a handful of network scanners that don't have anyway of configuring SMTP authentication. So I want the ...
1
vote
2answers
4k views

how to use phpList with external (3rd party) SMTP servers

Like the title says I am trying to have phpList on my server and relay the messages through 3rd party service (e.g. TurboSMTP.com). I am having trouble finding any setting in the application or in any ...
0
votes
1answer
170 views

Backup postfix relaying to itself

I have two machines running postfix, one is the primary mail server, the other is a backup relay. Both servers have an MX record, the backup having a lower priority. Most mail is relayed fine, but ...
0
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2answers
100 views

Postfix attempting all delivery virtually

We have Postfix configured for virtual domains and virtual mailboxes and it's running quite nicely. However, Postfix now thinks that everything except my_destination should be delivered virtually. ...
-1
votes
2answers
455 views

SMTP Relay to Multiple Hosts

I have a situation where I need to configure an MTA to relay messages for a single domain (@example.com) to multiple (3) seperate SMTP servers. Email for user@example.com received on SMTP-1 needs to ...
1
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2answers
301 views

SMTP server to be used for Email Marketing Service

I am trying to build a email marketing service company. I am a .net programmer and I have played around trying to build a custom SMTP server but a lot of problems came up when domain keys into play. ...
1
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1answer
2k views

Problems using hmailserver as outgoing SMTP server

I have hmailserver set up and accepting email for projectattack.co.uk domain - I can connect to the server through port 110 pop3 using both gmail and mail.app on osx I have a cname pointing smtp to ...
0
votes
1answer
452 views

How to setup a web server with remote SMTP

I have 2 severs, both running server 2008 (R2) One is the web server, one is running as a mail server. The setup I want is that any mail sent from apps (php, asp and asp.net) on the web server are ...
2
votes
4answers
1k views

Send emails from Linux via Google SMTP

I've gone as far as I can go on my own, but I'm not a Linux guru and am now stuck. I've got an Oracle database running Oracle Enterprise Linux 5.1 on an Amazon EC2 instance. I migrated it from a box ...
1
vote
1answer
507 views

Unable To Relay

I have a 2003 Windows SBS that I have just setup users POP Connectors to get their mail into the Exchange 2003 Server (on the same box). I am able to receive email fine, but can't send email out with ...
1
vote
2answers
2k views

Recommended MTA for Windows Server

I need an mail server running on my web server that will just route email through other email servers. Exchange requires Active Directories which just complicates an otherwise simple setup. What are ...
0
votes
1answer
444 views

Configure mail server to relay through another mail server

I'm a developer and I'm currently building a hosted ecommerce solution. One thing the software must do is email customers on behalf of the vendor. However, one of the business requirements is that ...
1
vote
1answer
176 views

SMTP blacklisted email response code

I am implementing a blacklist filter for a SMTP relay, which allows the user to define rules based on sender email, receiver email, sender ip or a combination of these. What SMTP status code should it ...
2
votes
2answers
470 views

Can I have Postfix relay for everyone on a second port?

I have a Postfix instance on an EC2 server which will need to accept mail from the outside world (e.g. port 25 will be mapped to it from a virtual IP.) I also want to use this server to send mail ...
0
votes
1answer
70 views

Email Proxy Loop

I have an exchange server 2003 running in Windows 2003. I have an unnamed program that listened for incoming mail, signs it with DKIM and then should relay it back to the Exchange server. I am a ...
0
votes
1answer
4k views

Create a blackhole mailbox in exchange 2010 and relay

Hey everyone. I am trying to create a blackhole (noreply) mailbox in exchange 2010. I want a legitimate email address that will evaporate any email that gets sent to it. I have been googling and ...
1
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1answer
299 views

Can anyone explain what are the inbound and outbound relay in the mail server?

Can anyone explain what are the inbound and outbound relay in the mail server?
1
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4answers
214 views

SMTP server requirements

Could someone help answer a few questions regarding the networking / DNS requirements for an SMTP server? Assume the server is setup already. Is a MX record required for SMTP? TCP port 25 open to the ...
2
votes
3answers
3k views

Is It Possible To Configure Team Foundation Server With Smarsh Exchange?

Our company recently migrated to an externally hosted Exchange server provided by Smarsh. Is there any documentation on how to setup Team Foundation Server (TFS) 2008 and 2010 with an external ...
1
vote
2answers
612 views

“Relay access denied” overflowing postfix mail.log

My mail.log is overflowing with random spammers attempting to send spam through my server. Is this typical or have I misconfigured something? Is there a way to ban an IP after several attempts of ...
1
vote
1answer
198 views

How does mail server know what kind of client it's authenticating?

My cloud-hosted java app successfully authenticates to our mail server on another host (a managed VPS) at mail.example.com. The server at mail.example.com accepts email to our users at ...
3
votes
4answers
5k views

SMTP relay through GMail overrides “from:” address with “[me]@gmail.com”

I've been trying to figure out if this is a new "feature" or if there is an issue with my configuration. I'm using Ubuntu 10.04 Desktop with Postfix as MTA. My smtp (as opposed to smtpd) ...
1
vote
1answer
266 views

Exchange unable to relay mail outbound

I have some users configured in Exchange 2003 (delivery options tab) to forward mails to their external address. This was working fine until today. The mails are being held up in the SMTP queue ...
1
vote
1answer
1k views

Exim4 Smart Host Relay

I am running Exim 4.71. I want to: Route all email from A.com through mail.A.com Route all email from [B-E].com through mail.B.com Send all other email directly. Here is the configuration I have ...