Re: Spam, SPF check and SRS?
On Nov 14, 2018 1:28 PM, Henry Jensen wrote: > > Hi, > > new OpenSMTPD user here. I did (and still do) administrate Debian with Exim for several years and wanted to try something different. > > So I got myself a server with OpenBSD and OpenSMTPD. > > So far I am impressed that a fully functional and secure SMTP server can be configured with such a small config file:) Congrats to the devs. > > Now that basic functionality is accomplished I want to try more. Of course I found config snippets here and there, but I think some parts of the puzzle are still missing and I still can't see the whole picture. Additionally most of the examples online are in the old syntax format. > > 1. Spam checking: I know there are solutions which do include spamd, Spamassasin and pf. Whats the best practice and what about rspamd? > Once the filtering code gets committed I think we will have endless possibilities for spam checking. > 2. SPF checking: I think, this should also be done by the spam filter? > See above. > 3. Sender Rewriting Scheme (SRS): SPF is breaking mail forwarding in some cases, and the solution to this is SRS. How can this be done with OpenSMTPD? > I don't know. :( Edgar > Kind regards, > > Henry > > >
Spam, SPF check and SRS?
Hi, new OpenSMTPD user here. I did (and still do) administrate Debian with Exim for several years and wanted to try something different. So I got myself a server with OpenBSD and OpenSMTPD. So far I am impressed that a fully functional and secure SMTP server can be configured with such a small config file:) Congrats to the devs. Now that basic functionality is accomplished I want to try more. Of course I found config snippets here and there, but I think some parts of the puzzle are still missing and I still can't see the whole picture. Additionally most of the examples online are in the old syntax format. 1. Spam checking: I know there are solutions which do include spamd, Spamassasin and pf. Whats the best practice and what about rspamd? 2. SPF checking: I think, this should also be done by the spam filter? 3. Sender Rewriting Scheme (SRS): SPF is breaking mail forwarding in some cases, and the solution to this is SRS. How can this be done with OpenSMTPD? Kind regards, Henry
Re: OpenSMTP as mx backup
I managed to figure it out. Seems quite simple. What does the trick is: action "disney" relay backup mx mxbackup.donald.duck > match from any for domain "donald.duck" action "disney" When the primare mx are down, I can see mails being queued up with: smtpctl show queue and mail shows up ending with: |pending|417|Network error on destination MXs For how long will they stay in the queue by default and how do I change this to say... 90 days? Regards, Lars. On Tue, Nov 13, 2018 at 3:01 PM Lars Bonnesen wrote: > Anyone can post a working smtpd.conf for OpenSMTP on OpenBSD 6.4? > > Lets say I want OpenSMTP to backup for the domain "donald.duck" with a > primary mail server as "mail.donald.duck" > > Regards, Lars. >
