Thomas wrote:
Marco van Putten wrote:
Thomas schreef:
Thomas wrote:
Marco van Putten wrote:
Thomas schreef:
Mitch Wiedemann wrote:
Thomas wrote:
Hi there.
I would like to setup a mailserver on my debian machine that can
receive email from any host and that can be accessed by imap or
pop3
(imap would be nice). I have seen some howtos on the net but they
seemed way too complicated. The howtos i saw included spamfilters,
anitivr software and page after page of config file hacking.
What i am really looking for is a simple mailserver that i can
install
by apt-get something and then configure by a gui/web interface (if
necessary at all). Then connect to it with my thunderbird and
lets go.
So far, exim4 was installed on my sarge by default, although i
dont
know what that means.
If i startup mutt with any user, it says 'no mailbox'.
This didnt ever disturb me, but now i should think of what that
means...
Thanks for hints,
Thomas
I wrote the following howto:
http://ithacafreesoftware.org/Members/mitch/notebook/debian/mailserver
It includes a very basic setup of Postfix (SMTP), Dovecot (pop and
Imap), and Squirrelmail (Web e-mail).
Good luck.
Hi Mitch,
your howto was helpful, still there is a problem left.
I can receive mail from the internet.
I can send and receive mail from and to local users.
I can NOT send mail to other hosts on the internet.
Here my /etc/postfix/main.cf:
smtpd_banner = $myhostname ESMTP $mail_name (Debian/GNU)
biff = no
# appending .domain is the MUA's job.
append_dot_mydomain = no
# Uncomment the next line to generate "delayed mail" warnings
#delay_warning_time = 4h
myhostname = ares.dyndns.biz
mydomain = dyndns.biz
alias_maps = hash:/etc/aliases
alias_database = hash:/etc/aliases
myorigin = /etc/mailname
mydestination = $myhostname, localhost.$mydomain, $mydomain,
ares.dyndns.biz
#relayhost =
mynetworks = 127.0.0.0/8
mailbox_command = procmail -a "$EXTENSION"
mailbox_size_limit = 0
recipient_delimiter = +
inet_interfaces = all
net_interfaces = all
I do login as local [EMAIL PROTECTED] via imap.
If i want to send mail to a [EMAIL PROTECTED] or similar i get the
message from the email client:
"An error occurred while sending mail. The mail server responded:
<[EMAIL PROTECTED]>: Relay access denied. Please verify that your
email ddress is correct in your Mail preferences and try again.".
Well, of course, the email address in my preferences is
[EMAIL PROTECTED] which should be correct.
What is problem here? Does the mailserver @gmx refuse my mail
because the domain is dyndns.biz, which is not to be trusted?
Is there a problem with my config?
I dont know.
By the way i dint understand step 4 in the Howto:
4. Add a valid root alias to /etc/postfix/aliases
There is no /etc/postfix/aliases on my sarge nor do i know what a
valid root alias is.
Well, i dont think this is the problem why i cant send out email,
is it?
Thank you,
Thomas
Hey Thomas,
You have to add ares.dyndns.biz to mynetworks
mynetworks = 127.0.0.0/8, ares.dyndns.biz
The alias file is in /etc/aliases. By a valid root alias they mean
an adress wich resolvs to a mailbox which is read by an actual
person. After editing /etc/aliases you have to run the command
newaliases to activate the new alias.
Good luck,
Marco.
I edited the line
mynetworks = 127.0.0.0/8, ares.dyndns.biz
and then restarted postfix.
Still, i get the same error message: Relay access denied.
At this point i still dont understand who is denying the relay: my
own mailserver (ares) or the target mailserver (gmx.net).
Is there a logfile or something that can tell me who is actually
denying what?
Thanks,
Thomas
Aha, i found out:
mail.log
Nov 2 23:26:50 localhost postfix/smtpd[14343]: NOQUEUE: reject:
RCPT from nova[10.0.0.2]: 554 <[EMAIL PROTECTED]>: Relay access
denied; from=<[EMAIL PROTECTED]> to=<[EMAIL PROTECTED]>
proto=ESMTP helo=<[10.0.0.2]>
And mail.info
Nov 2 23:30:38 localhost postfix/smtpd[14400]: NOQUEUE: reject:
RCPT from nova[10.0.0.2]: 554 <[EMAIL PROTECTED]>: Relay access
denied; from=<[EMAIL PROTECTED]> to=<[EMAIL PROTECTED]>
proto=ESMTP helo=<[10.0.0.2]>
So i thought, maybe the proble is because im trying to send from a
client in the LAN with a local network address 10.x.x.x
Thus i opened up an email app on the mailserver itself. But i stell
get the same:
Nov 2 23:39:17 localhost postfix/smtpd[14487]: NOQUEUE: reject:
RCPT from c217074.adsl.hansenet.de[213.39.217.74]: 554
<[EMAIL PROTECTED]>: Relay access denied;
from=<[EMAIL PROTECTED]> to=<[EMAIL PROTECTED]> proto=ESMTP
helo=<c217074.adsl.hansenet.de>
:-(
why is that?
"mydomain = dyndns.biz" probably has to be "mydomain =
ares.dyndns.biz" as well.
Restart postfix.
On the mailserver try:
telnet localhost 25
helo localhost
mail from: [EMAIL PROTECTED]
rcpt to: [EMAIL PROTECTED]
data
subject: Test
Give 'm hell.
.
Hope this helps,
Marco.
Yeeee, look at my email address ^^
I edited
mynetworks = 127.0.0.0/8, ares.dyndns.biz, 10.0.0.0/16
I missed the local network 10.x on mynetworks.
Still, some remote mailservers refuse to talk to me, but i think thats
because of my iprange or whatever. Well i think i can live with that.
Um, almost embarassing is, that i relaxed my firewall a lot for this
experiment.
I like the rule:
On Chain Incoming REJECT: TCP/UDP with destination port in range1 - 1024
So that i can allow the services i want manually.
What exactly do i have to allow to receive email ? is TCP on port 25
sufficent?
(it seems i dont receive mail anymore if i just accept TCP port 25)
Well thanks a lot to all you guys out there. It was much more fun with
you than doing this alone.
Greetings
Thomas
My mistake, tcp port 25 is all right, i made a spelling mistake.
Well, thanks again.
Thomas
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