See a double-bounce mail generated by my postfix

2018-08-07 Thread Dominic Raferd
I would like to be able to see an example of a double-bounce message generated by my postfix (3.3.0) server. Can I get my postfix to send me (say to an unrelated external mailbox) a double-bounce message? Alternatively is there a way I can save, on the server, the double-bounce message as and when

Re: Greylisting (Was Re: Fall back to relay after [some] 5XX repl[ies] from destination?)

2018-08-07 Thread Matus UHLAR - fantomas
On 07 Aug 2018, at 04:49, Luc Pardon wrote: but in any case it serves no useful purpose (unlike greylisting, SAV, etc. On 07.08.18 13:57, @lbutlr wrote: Are people still finding grey listing to be useful? I found it caused far more problems than it solved and the endless game of scanning logs

Re: Greylisting (Was Re: Fall back to relay after [some] 5XX repl[ies] from destination?)

2018-08-07 Thread Wietse Venema
@lbutlr: > On 07 Aug 2018, at 04:49, Luc Pardon wrote: > > but in any case it serves no useful purpose (unlike greylisting, SAV, = > etc. > > Are people still finding grey listing to be useful? I found it caused = > far more problems than it solved and the endless game of scanning logs = > for si

Re: Greylisting (Was Re: Fall back to relay after [some] 5XX repl[ies] from destination?)

2018-08-07 Thread Dominic Raferd
On Tue, 7 Aug 2018, 20:58 @lbutlr, wrote: > On 07 Aug 2018, at 04:49, Luc Pardon wrote: > > but in any case it serves no useful purpose (unlike greylisting, SAV, > etc. > > Are people still finding grey listing to be useful? I found it caused far > more problems than it solved and the endless ga

Re: is possible modify the source address based on the subject?

2018-08-07 Thread @lbutlr
On 07 Aug 2018, at 04:53, Wietse Venema wrote: > Maybe some Procmail rule can do all this. I don't use Procmail. You can, with enough staples and duct tape, do *anything* in procmail. However, it is old, krufty, not under development<1>, has several bugs, doesn’t understand mime, and I don’t r

Greylisting (Was Re: Fall back to relay after [some] 5XX repl[ies] from destination?)

2018-08-07 Thread @lbutlr
On 07 Aug 2018, at 04:49, Luc Pardon wrote: > but in any case it serves no useful purpose (unlike greylisting, SAV, etc. Are people still finding grey listing to be useful? I found it caused far more problems than it solved and the endless game of scanning logs for sites like Amazon that resend

Re: is possible modify the source address based on the subject?

2018-08-07 Thread Wietse Venema
kazabe: > hello. > Is possible rewrite the sender address on a send mail when the subject > have some special expression? Your best options involve using software outside of Postfix, because "change message property X based on the content of some other message property Y" is not built into Postfix

[SOLVED] Re: Fall back to relay after [some] 5XX repl[ies] from destination?

2018-08-07 Thread Luc Pardon
(Please note that I also changed the remainder of the subject line to try and avoid further confusion.) On 06-08-18 20:48, Wietse Venema wrote: > Luc Pardon: >> The only "problem" that I am trying to solve is how to detect that the >> other side is telling me to re-send through my ISP, so that I c