Re: Backscatter questions

2017-10-01 Thread @lbutlr
On 01 Oct 2017, at 09:59, Matus UHLAR - fantomas wrote: > a little searching says it's correct: > > https://www.mail-archive.com/postfix-users@postfix.org/msg25973.html Excellent! Thanks for researching that. -- Apple broke AppleScripting signatures in Mail.app, so no random signatures.

Re: Backscatter questions

2017-10-01 Thread Matus UHLAR - fantomas
On 01 Oct 2017, at 08:50, Matus UHLAR - fantomas wrote: 2. their sender addresses should be validated with smtpd_reject_unlisted_sender On 01.10.17 09:22, @lbutlr wrote: Do Address delimiters have an issue with this? I thought they did. I thought that's exactly what address delimiters are f

Re: Backscatter questions

2017-10-01 Thread @lbutlr
On 01 Oct 2017, at 08:50, Matus UHLAR - fantomas wrote: > 2. their sender addresses should be validated with > smtpd_reject_unlisted_sender Do Address delimiters have an issue with this? I thought they did. That is, u...@example.com sends and email "from" user+delimi...@example.com and smtpd_r

Re: Backscatter questions

2017-10-01 Thread Matus UHLAR - fantomas
On 27.09.17 13:49, J Doe wrote: 1. From what I understand, “backscatter” refers to e-mails such as non-delivery reports being sent back to the originator of a spam message. As the originator is often a forged address, the non-delivery reports is essentially junk data. Would this be a correct d

Re: Backscatter questions

2017-09-30 Thread Wietse Venema
J Doe: > > > On Sep 27, 2017, at 4:30 PM, Benny Pedersen wrote: > > > > J Doe skrev den 2017-09-27 22:20: > > > > [snip] > >> Is there a way to achieve this or as you noted, are whitelists to be > >> avoided ? If whitelists are to be avoided what is the best practice > >> for handling this sce

Re: Backscatter questions

2017-09-30 Thread J Doe
> On Sep 27, 2017, at 4:30 PM, Benny Pedersen wrote: > > J Doe skrev den 2017-09-27 22:20: > > [snip] >> Is there a way to achieve this or as you noted, are whitelists to be >> avoided ? If whitelists are to be avoided what is the best practice >> for handling this scenario ? > > why not add

Re: Backscatter questions

2017-09-27 Thread Benny Pedersen
J Doe skrev den 2017-09-27 22:20: [snip] Is there a way to achieve this or as you noted, are whitelists to be avoided ? If whitelists are to be avoided what is the best practice for handling this scenario ? why not add example.org on google apps mx ? :=) if useers not wanting your mailserver

Re: Backscatter questions

2017-09-27 Thread J Doe
> On Sep 27, 2017, at 2:08 PM, Benny Pedersen wrote: > > J Doe skrev den 2017-09-27 19:49: > >> I recently configured Postfix 3.1.0 on a low-volume, Internet facing >> server. Mail operations are normal, but I had two questions regarding >> backscatter. > > ... > >> 1. From what I understand

Re: Backscatter questions

2017-09-27 Thread Benny Pedersen
J Doe skrev den 2017-09-27 19:49: I recently configured Postfix 3.1.0 on a low-volume, Internet facing server. Mail operations are normal, but I had two questions regarding backscatter. ... 1. From what I understand, “backscatter” refers to e-mails such as non-delivery reports being sent ba