Mail smarthost/forwarding (spamhaus.org)

[2thamaxx]

I've been using the mail station since the beta and with allot of satisfaction although it's still very limited.

Now since last week I discovered that my ISP has put the customers IP range to the blacklist (spamhaus.org) that is used by most SMTP hosts like hotmail etc.
Since this change I cannot email anyone anymore.
I've been looking into a workaround as my provider will not exclude mine IP address .
Workaround would be the ability to use a smarthost (forwarding external email) to i.e. mine ISP SMTP server.
Unfortunately I haven't found a way to do this in the mail station.

Cheers

ps, looks like more and more of us are getting this problem......so if Synology is not coming with a workaround I'm afraid this feature will not last for long.

[momo]

hi there,

i think that you should have a look in the main.cf file.
you have directive relay_host to set if you want to relay to your ISP SMTP.

[2thamaxx]

Hi,

Thanks for directing me.
I did some research and have collected the following information which could help other users as well.

I used the following third party package which is super useful: http://www.xs4all.nl/~merty/syno/ConfigFileEditor.spk

Once installed start the package (this will automatically drop back to the stop state but that's ok).

Open from the management interface under the menu 'Third-party applications' the program Config file editor.
Open here the config file from the Config file editor.

Add the following rule and save:
/usr/syno/mailstation/etc/main.cf,Postfix

Restart your Synology machine (otherwise in my case the Postfix didn't show up).

Again, go to the config file editor and now choose the 'Postfix'.
Search for the line with the text ' #relayhost = [mailserver.isp.tld] '
Edit this line with the following:

relayhost = smtp.yourprovider.xx (make sure you remove the #).

Replace the smtp.yourprovider.xx for the smtp server offered from your provider.

After this I only had to stop and start the mailstation package.

Mail now is working like a charm.

Credits to the Dutch Synology Forum for this information.

[ColdFire]

Thanks for that information dude, very usefull... I will hopefully look at that later tonight...
Does anyone know how you would add SMTP smarthost authentication details? Thanks!

[Farley]

Super workaround 2thamaxx,it worked a charm..... Nice one.....

[2thamaxx]

Thanks for that information dude, very usefull... I will hopefully look at that later tonight...
Does anyone know how you would add SMTP smarthost authentication details? Thanks!

As far as I know "most" isp allow relaying without authentication (ip based).
It's only pop3 they ask for credentials.

Otherwise I don't know how to do it....Let us know if it works or not.

Cheers!

[schauy]

hi,

activating POSTFIX config file in "config file editor" worked for me by pressing "F5" (the ultimate reload order ) in the menu frame on the left side.
No reboot required.

Greetings,
Schauy

[2thamaxx]

hi,

activating POSTFIX config file in "config file editor" worked for me by pressing "F5" (the ultimate reload order ) in the menu frame on the left side.
No reboot required.

Greetings,
Schauy

hmm, wierd. on my cs407 it woun't work.
Anyways, I had to do it all over again after the firmware upgrade.
Will make a backup from the main.cf file for next time

[wulee]

Thanks for that information dude, very usefull... I will hopefully look at that later tonight...
Does anyone know how you would add SMTP smarthost authentication details? Thanks!

As far as I know "most" isp allow relaying without authentication (ip based).
It's only pop3 they ask for credentials.
Otherwise I don't know how to do it....Let us know if it works or not.
Cheers!

My outbound SMTP is also blocked. Inbound email is fine.

My ISP also need authentication to use the relay SMTP smarthost.

Any clues to add authentication support for the SMTP smarthost?

Thanks.
Andrew

[schauy]

hi,

we have a postfix and saslauthd installation on the disk station.

In theory the authentication for relaying OUTGOING mail should be very easy:
just use the config file editor the way 2thamaxx described it (http://forum.synology.com/enu/viewtopic.php?f=132&t=13848#p58840) and then follow the instructions here:
http://postfix.state-of-mind.de/patrick.koetter/smtpauth/smtp_auth_mailservers.html.
hint: synology postfix config files are in "/usr/syno/mailstation/etc"

If I am faster than one of you I will post my experiences here - right now the weather is too beautiful to stay inside

greetings,
schauy

[ian7387]

It's great ... I have been struggling for days ... eventually now get it done.

[2thamaxx]

Well done chaps!

[chales]

Hi - I am trying to work through http://postfix.state-of-mind.de/patrick ... rvers.html (16.1.3)

but unable to postmap the sasl_passwd file on my 407e. Any guidance appreciated. Thanks.

[schauy]

Hi,

do you have any error message or could you explain what exactly you were doing ?

greetings,
schauy

[chales]

Hi,

do you have any error message or could you explain what exactly you were doing ?

greetings,
schauy

Sure. As root, I run the command: postmap etc/usr/mailstation/etc/postfix/sasl_passwd

after having created the file as per 16.1 in http://postfix.state-of-mind.de/patrick ... rvers.html

and the error is "-ash: postmap: not found". So I don't have this command on the system and have no idea why.

Thanks