0
votes
0answers
34 views

postfix not sending mail from localhost

I am having a problem sending mail from the server. The issue was spotted because as php mail() is failing to deliver any messages. I have checked the mail log on the server and found the following; ...
1
vote
2answers
107 views

Exim on Centos - Configuring gmail smtp

I want to set up Exim to send the mails through my gmail (actually my domains google apps). I have added the router, transport and authenticator. Specifically: gmail_route: driver = manualroute ...
0
votes
0answers
20 views

centos rely access denied postfix send mail [duplicate]

I am trying to send mail from my centos using postfix configuration but getting error as 554 5.7.1 <dummy@gmail.com>: Relay access denied my postconf -n shows belog information ...
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
1answer
162 views

PMTA wont start

I ran a debug and this is what it spit out... Startup error: Error initializing thread: Error binding socket to 0.0.0.0:25, status = EADDRINUSE Never seen this before. All help is appreciated.
2
votes
4answers
141 views

Implement server-side (CentOS) measures to prevent hosted mailboxes sending bucket loads of spam

We have a number of hosted clients on one of our servers. One client in particular, which has four active mailboxes is repeatedly getting just one (and always the same one) mailbox infected so that ...
0
votes
1answer
78 views

Mail Authentication Randomly Failing

This started about 4 days ago on a production server. Clients started getting random incorrect password dialog boxes in their email programs, most use Outlook. This happens for email addresses on all ...
1
vote
3answers
2k views

Nagios email notification not working on CentOS

I have configured Nagios 3.4.4 on CentOS 6.3 Final. I have also configured Postfix with SMTP email server. I have verified from console that I am able to send email notifications and recieved them on ...
0
votes
1answer
748 views

CentOS Dovecot Permission Denied

I have a dovecot mail server setup with Virtualmin, and for some reason, out of the blue, yesterday, the mail server stopped working. I found that in the /var/log/maillog file, I have the following ...
0
votes
2answers
282 views

Postfix email address change

Being new to Linux I have followed this tutorial to set up a mail server: https://www.digitalocean.com/community/articles/how-to-install-postfix-on-centos-6 Everything is working correctly however I ...
0
votes
1answer
339 views

Using postfix in CentOS 6 to relay mails to First.Last@gmail.com

I'm using: # cat /etc/*release CentOS release 6.3 (Final) # rpm -qa | grep post postfix-2.6.6-2.2.el6_1.x86_64 on 2 servers: preferans.de and (yes, funny name) ...
0
votes
1answer
244 views

Issue with emailing

Ok, so I have a small php script that sends an confirmation email after signup.. but it isn't working.. I know it isn't the code as the script works any where else, but I have made sure sendmail is ...
1
vote
1answer
1k views

CentOS 6 with webmin and virtualmin - cant get POP / SMTP working?

I've set up Webmin and Virtualmin on a CentOS 6 dedicated server. Postifx / Dovecot config is untouched by me, and I havent tried to open or close any ports manually. My problem is that after ...
1
vote
5answers
149 views

Should email system be virtualized?

I have been running an email system for an academic department for ages that consists of postfix, procmail, dovecot, clamav, spamassassin, MailScanner, ldap, maildir, xfs, lvm, CentOS. Number of users ...
0
votes
3answers
5k views

Changing the maximum mail size in Postfix

When sending large email to a new CentOS6 server running Postfix as the MTA, the following message is returned: tried to deliver your message, but it was rejected by the recipient domain. We ...