Sendmail - where to start
Where do i begin with sendmail ?
From what I've been reading sendmail is one of the oldest and strongest mail servers around.
Just a tiny bit hard to setup.
I wanna set it up, but really have no idea where to begin.
Having a dynamic IP, I checked my port 25 and from what i can tell my ISP is blocking it.
Is there someone how had the same problems and has a mail server running.
Some help would be welcome
And done viewed some others how2 to
For as far as i can tell it could work.
This is what i get back when i try to send something
If port 25 is blocked, you can only use smarthost.
Nope noting so far still keep getting the same error.
I could be wrong but don't i need to define a User account and Pass before the relay server from skynet will accept my connection ?
You need to use a connection from skynet.
What is the smtp server you where given by skynet?
Seems to me there is a problem with dezuttere.mine.nu and dezuttere.com
I would suggest to start with a basic setup and go from there
Yes thinking about that to.
To start over from 0.
How do i reset sendmail to its default settings?
Depends on your distribution.
You did backup the original /etc/mail/sendmail.mc file?
You could completely remove sendmail, (purge all the conf files) and reinstall.
Just my 2 cents, I would use exim instead of sendmail.
I see you also reside in Belgium.
May i ask do you have a mail server running?
I'm trying to get one up under windows as it is more noob proof.
Learning to crawl before i start to walke
But no go there either.
Using this port scanner i checked to see whats open and whats not.
It seems if ports 25 and 110 are open but it seems there locked?
That they closed 25 i can understand that but why would they close 110 ?
For as far as i now
25 is the default port for SMTP - sending
110 for receiving.
I'm trying to send email put nothing is coming in.
The ports are forwarded to the server inside my router and firewall.
I used to run a mail server, when I was working on the support department of a ISP, and had 2 fixed IP's.
Since I left, I have a dynamic IP, and don't run a mailserver anymore, since most SMTP servers don't accept
connections from a dynamic IP, and the cost to run a server 24/7 are to high :-)
Now I use the SMTP from gmail to send mails, so I can sent mail, whatever connection I use
(at home, with friends, on holiday)
For the record, I always used exim, never used sendmail.
I can see your webserver, ftpserver and ssh is working.
However, no connection on port 25 or 110
The external SMTP server will connect to your port 25 in order to deliver mail, you will connect via port 25 in order to send mail.
110 is the port to pop mail from your server
If you want to use dezuttere.com as your domain, you need to make sure the MX records of that domain point to your server, you need to setup reverse DNS, meaning the domain needs to point to the IP, and the IP needs to point back to the domain.
Most SMPT server do a check for that.
Also you need to setup a backup MX, in case your server, or the connection goes down.
A portscan shows:
And I don't know if you can use dyndns to send and recieve mail.
In short, most SMTP servers refuse connections from dynamic IP's, and they check for reverse DNS
Another problem, if your IP changes, and that IP is blacklisted somewhere for sending SPAM, due to an infection of that computer, your mailserver is blacklisted at that moment also, until you change IP.
You can see if your hosting provider has an option to forward all mail from your domain to an emailaddress.
I can forward all mail from my domain to my gmail account, or create aliasses so only certain users are forwarded,
FYI, take a look at edpnet, they offer a connection from 24 Mbps/1024 kbps, traffic 100 GB, and they block no ports for 29,95 euro/month
This is really some information that i can use.
I also found out that dezuttere.com has no MX record.
This is really strange because this is the mail/web server i'm renting.
And my mail and everything else works fine there.
The tools they provide tells me that the "dezuttere.no-ip.org" mx record is pointing to my servers IP.
So i'm almost a 100% sure that part is working fine.
But since port 25 is blocked its seems a will need to activate a "mail hopper" service to redirect port 25 to a none default port.
This will cost me about €25 a year with DynDNS.
In the total cost of my studies now that is nothing.
Working to get my CompTIA A+ (finals in sep.), Server+, Network+ and CCNA.:)
Never the less thanks for your time and the all off the information you have been providing.
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