Could you please me know server specs for (Centos) machine serving mail for about 500 users. we are planning to configure exim mail server.
what would be the (esp. memory)?
Please advise on it.
Regards,
Muhammad Shahid
if you want to install only exim mail server on your server you can install it with minimum 2GB RAM and 40GB HDD.
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I am trying to test some email sending from my localhost. I'd like to use an external SMTP server for this matter. I am using Cent OS 6.I can't find the useful topics related for this? Could anyone explain this to me?
I would like to ask for advice about SMTP Servers.
I'd like to setup a small and simple server for a school project for which I need to send (or mock send) emails to a small amount of recipients.
So I need a simple, lightweight and Windows 10 compatible SMTP server.
I've already tried hMailServer but it didn't work, though I don't know why.
It had also messed with my OpenVPN configuration and I needed to reinstall it to have VPN tunelling working again.
Thank you in advance for any piece of advice.
I have a web server running CentOS and a separate mail server running Microsoft Exchange. I have the web server connecting to the mail server via SMTP on port 587 to send emails.
Sometimes the connection to the mail server refuses, but it's rare. Could an intermittent failure be related to port settings? I would have thought it's all or nothing.
For the CentOS web server, what rules should I be looking to configure in the iptables if any? Do I need to add an entry for port 587 on this server? Or do I just need to allow incoming connections on the mail server for 587?
Thanks in advance.
You don't need to set up any iptables rules on your webserver, since outgoing connections are allowed by default. Your occasional drops won't have anything to do with the webserver's firewall, so you'll want to look at tuning your Exchange server, if the error is impactful enough to worry about it.
I have just had to re-image my server and for some reason, when I do a test connection in outlook, it errors on both send/receive with could not connect to server.
I have checked that both postfix and courier-imap are running on the server and have restarted both just to make sure. I am using plesk 12 and have setup users for the email system, so would appreciate some guidance as to how I can troubleshoot this. Many thanks
SOLVED
Reset iptables all good now
I need to setup mail server for sending from PHP scripts only. I'm not needed to receive email or sending it by another way. Preferable is the Postfix (it is easy than Sendmail, for example). Ssmtp is doesn't suit me.
Is there some manual or ready-to-run config for this?
ssmtp has the big disadvantage to loose mails if the mailhub server is not reachable.
there should be at least some spooler for this scenario.
freebsd handbook is the best resource about your requirements:
http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/mail-using.html
https://wiki.freebsd.org/SecureSSMTP
i prefer ssmtp