0
votes
1answer
66 views

Postfix relay mails from a single domain and IP

we have an Mdaemon server which redirects outbound mails to an external basic Postfix relayer. We have configured firewall rules (in front of postfix server) to accept smtp requests only from the ...
-3
votes
1answer
63 views

How to configure sendmail to use different SMTP relay servers [closed]

How to configure sendmail to use different SMTP relay servers. For example: For all gmail.com recipients sendmail should use gmail SMTP server obviously with Gmail smtp auth. For all yahoo.com ...
1
vote
1answer
63 views

How can I relay mail to multiple SMTP servers?

We want to use Google Apps for Domains as our email service but the "corporate" office want's the emails in Exchange. I would like to set up a relay (is that the proper term) to send any incoming ...
3
votes
2answers
271 views

Intermediate SMTP server (exim), how to handle backscatter?

I have a dedicated Ubuntu Lucid box at a hosting provider that is my backup MX (running exim4 4.71-3ubuntu1.4) for domains that I have configured on an Exchange 2007 server on my LAN. So my Exim ...
1
vote
1answer
180 views

Need an open SMTP relay for testing

I'm developing some HTML email templates and have a internal test tool that can send out test emails to my own email address for QA purposes. Unfortunately this tool's settings page allows the mail ...
1
vote
1answer
893 views

postfix 5.7.1 Relay access denied when sending mail with cron

Reluctant to ask because there is so much here about 'postfix relay access denied' but I cannot find my case: I use php (Zend Framework) to send emails outside my network using the Google mail server ...
1
vote
1answer
237 views

relay_domains seems to be ignored by postfix

I am trying to set up a perimeter spam and malware filter using CentOS/Postfix/SpamAssassin. Unfortunately, I am still stuck on the PostFix part. I've setup a new subdomain DNS with its own A/MX ...
1
vote
1answer
391 views

Sending mail from different IP for each domain

I have on one server domain1.com domain2.com domain3.com on CentOS and Qmail. I want them to send email trough a second server that uses ip1, ip2, ip3. I can easy do this by editing this Qmail file: ...
-2
votes
1answer
181 views

Setting sendmail to send mail for another server [closed]

I have a server with CentOS+Plesk+Qmail, I want to set it to send mail trough another server (CentOS+Sendmail). What do I need to set at the second server end in order to accept and deliver email for ...
1
vote
1answer
397 views

Relay/forward only mail that originates from specific domain using postfix

I have 2 postfix servers (lets say mail.aaa.tld and mail.bbb.tld) that acts as a relays for several domains (lets say x.com, y.com, z.com) that are composed at ccc.tld. SMTP server at ccc.tld can ...
0
votes
2answers
71 views

Mail “proxy” to add encrypted authentication support for legacy programs

There are some programs that my company use that do not support encrypted smtp authentication and using unencrypted auth is not possible (hosted on the internet by another provider, they will not ...
0
votes
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 ...
0
votes
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 ...
0
votes
3answers
504 views

SMTP relay to multiple hosts

We are in the process of switching our email from a locally hosted server to Google apps. We have a lot of users and I'd like to be able to switch them over one at a time so I don't get inundated with ...
0
votes
1answer
216 views

sendmail redhat

For some reason even after providing the sender's from adress my mails are not being delivered as from is missing as below maillog. Any suggestions? May 8 20:08:43 tawq02 sendmail[13443]: ...
2
votes
2answers
190 views

Multi-site email relay based on email address (in AD?)

We have a multi site setup currently based around Exchange 2003, but we are getting a lot of traffic over the vpn as only one server has an internet facing IP. Is there such a product that could sit ...
1
vote
2answers
1k views

Postfix dynamic smtp_helo_name

I have a mail server that relays e-mails for two different domains. I want the smtp_helo_name to be different based on the domain. I'm assuming there is no way to do this via checking the mail ...