| 1 |
On 1/22/2011 1:34 PM, Alex Schuster wrote: |
| 2 |
> Hi there! |
| 3 |
> |
| 4 |
> On my desktop PC, I have set up ssmtp with access data for my mail |
| 5 |
> server, so things like smartmontools or portage can send me emails. |
| 6 |
> |
| 7 |
> This is working fine. But there are other PCs in the LAN, which I would |
| 8 |
> also like to get status emails from. Being not the only one with root |
| 9 |
> access there, I do not want to duplicate the ssmtp setup because of the |
| 10 |
> password stored in ssmtp.conf. |
| 11 |
> |
| 12 |
> Is there an easy solution? Like setting up a simple SMTP server on my |
| 13 |
> desktop PC, that accepts connections from the LAN and forwards mails to |
| 14 |
> my external mail server? |
| 15 |
> |
| 16 |
> I once had courier running, but did not really understand the |
| 17 |
> configuration, and would not really like to set it up again. Or dovecot, |
| 18 |
> which I heard good things about, so I would prefer it now. But maybe the |
| 19 |
> default configuration only needs few changes for my purpose? Or maybe |
| 20 |
> there is another simple tool that does just what I want? |
| 21 |
> |
| 22 |
> It's nothing important, so if there's no simple solution, I'll just skip |
| 23 |
> this and check the logs from time to time. |
| 24 |
> |
| 25 |
> Wonko |
| 26 |
> |
| 27 |
|
| 28 |
I handle it with Postfix. Dovecot is only imap and won't accept main |
| 29 |
directly. |
| 30 |
|
| 31 |
1. install postfix with USE sasl or devecot-sasl, I don't believe it |
| 32 |
matters which. Add the following lines to the bottom of |
| 33 |
/etc/postfix/main.cf and fill in your hostname, domain, etc as needed. |
| 34 |
|
| 35 |
# local settings |
| 36 |
myhostname = host.domain.com |
| 37 |
mydomain = domain.com |
| 38 |
myorigin = $myhostname |
| 39 |
inet_interfaces = all |
| 40 |
mydestination = $myhostname, localhost.$mydomain, localhost |
| 41 |
mynetworks_style = subnet |
| 42 |
mynetworks = 127.0.0.0/8 10.19.20.0/24 |
| 43 |
|
| 44 |
smtpd_recipient_restrictions = |
| 45 |
# reject_non_fqdn_recipient |
| 46 |
# reject_non_fqdn_sender |
| 47 |
# reject_unknown_recipient_domain |
| 48 |
permit_mynetworks |
| 49 |
reject_unauth_destination |
| 50 |
permit |
| 51 |
|
| 52 |
I commented out some of the checks above. Enable them if they'll work in |
| 53 |
your environment. I recommend at least reject_unknown_recipient_domain |
| 54 |
which doesn't allow recipients to domains that don't exist. |
| 55 |
|
| 56 |
2. run sudo newaliases |
| 57 |
Postfix bitches if the /etc/mail/aliases.db doesn't exist and will hang |
| 58 |
on start. |
| 59 |
|
| 60 |
3. Verify postfix works, isn't complaining in the logs, etc. |
| 61 |
Make sure it's up and running. That you can telnet to port 25 from |
| 62 |
another machine and even send to a local user on your machine. |
| 63 |
|
| 64 |
4. Add the user/pass stuff to the bottom of /etc/postfix/main.cf |
| 65 |
|
| 66 |
# relay host and credentials |
| 67 |
relayhost = [my.external.relayhost.com] |
| 68 |
smtp_sasl_auth_enable = yes |
| 69 |
smtp_sasl_password_maps = hash:/etc/postfix/sasl.passwd |
| 70 |
smtp_sasl_mechanism_filter = digest-md5 |
| 71 |
smtp_sasl_security_options = noanonymous |
| 72 |
|
| 73 |
/etc/postfix/sasl.passwd |
| 74 |
[my.external.relayhost.com] myusername@×××××××××.com:my_secure_passwd |
| 75 |
|
| 76 |
sudo postmap /etc/postfix/sasl.passwd |
| 77 |
|
| 78 |
sudo /etc/init.d/postfix restart |
| 79 |
|
| 80 |
Things to remember. You need to restart Postfix is your change the |
| 81 |
password because it caches it. Also the relayhost name needs to match |
| 82 |
*exactly* between the passwd file and main.cf. |
| 83 |
|
| 84 |
5. Once you're this far it's time to test all the way through. |
| 85 |
|
| 86 |
make sure you can send from the localhost machine |
| 87 |
sendmail -v some@×××××××.com |
| 88 |
. |
| 89 |
|
| 90 |
Once you're sure that works test from another machine on the network. |
| 91 |
Ideally it should just work if you've done all the steps. |
| 92 |
|
| 93 |
kashani |
Archives