On 07 May 2020, at 19:31, yuv <post...@sfina.com> wrote: > I am operating a smallish postfix server for my law office. Many of > our contacts use Google's calendar, and when they enter one of our > email addresses into their calendar entries, we receive a flood of > annoying emails. Invitations / reminders / updates / changes / > cancellations of meetings.
This is a “feature” of Google Calendar. > Initially, after receiving twelve emails for a single calendar entry > repeated weekly for three months, I wanted to outright reject the > Google spam. After the second change within 24 hours, I also wanted to > fire the client. But maybe there is smarter way to deal with this > annoyance, such as re-directing the emails to an auto-responder That would be a very bad idea. > or some other form of automated processing (/dev/null comes to my mind too)? Filter them into their own mailbox and auto-mark them as read. > Below is the PCRE that I came up with to catch the offending messages, > without blocking other correspondence (the contacts and their > organizations are likely to use Google's SMTP for their regular > emails): > > /^Return-Path:(.+)(calendar-server.bounces.google.com)(.*)/ REJECT No > Google Calendar Spam Here If you reject mail from Google, Google will stop sending you mail. ALL mail. Can you afford that? > But maybe rewriting the destination address, or sending an auto- > responder right away? I just want to get that spam out of the way in > the most elegant way possible. Sieve/procmail. -- My own people are trying to kill me? It's so French.
