Mail with Gnus

This is my setup to use Gnus together with getmail, procmail and msmtp to speed up things, using the maildir backend (fast and reliable)

Fist: setup getmail using a wrapper to support multiple accounts:

#!/bin/sh
set -e
cd $HOME/.getmail
rcfiles=""
for file in *rc ; do
    rcfiles="$rcfiles --rcfile $file"
done
exec /usr/bin/getmail $rcfiles $@

Call it run-getmail, put it in your $PATH, and execute in it your crontab.

Create the -rc files in ~/.getmail, one for account.

[retriever]
type = SimplePOP3SSLRetriever
server = pop.gmail.com
username = myuser
port = 995
password = mypassword

[destination]
type = MDA_external
path = /usr/bin/procmail
arguments = ("-f", "%(sender)")

Let's set up ~/.procmailrc

PATH=/bin:/usr/bin:/usr/local/bin 
DEFAULT=$HOME/Maildir/misc/
MAILDIR=$HOME/Maildir            
LOGFILE=$HOME/.procmaillog  
# Recipes below this comment:

:0:
* ^(To|CC):.*anarchysf@lists.mutualaid.org
$MAILDIR/anarchysf/

:0:
* ^Subject: ntg-context Digest
$MAILDIR/ConTeXtDigest/

:0: 
${DEFAULT}

Note the trailing slash. The mails will land in ~/Maildir in the maildir format.

Set up the ~.msmtprc

account default              
host smtp.server1.net
port 25                     
from marco@server1.net
tls on                       
tls_starttls on              
tls_certcheck off
auth on                     
user username@server1.net
password blablabla
logfile ~/.msmtp.log

account gmail
host smtp.gmail.com          
port 587                     
from pincopallino@gmail.com     
tls on                       
tls_starttls on              
tls_trust_file /etc/ssl/certs/ca-certificates.crt
auth on                     
user pincopallino@gmail.com   
password blablablabla
logfile ~/.msmtp.log

Another little effort. Create the ~/.gnus.el

(setq user-mail-address "marco@server1.com")
(setq user-full-name "Marco")
(setq gnus-select-method '(nntp "news.gmane.org")) 
(setq gnus-secondary-select-methods 
      '((nnmaildir "mail" (directory "~/Maildir"))))
 ;; arbitrary name after "nnmaildir+"
(setq gnus-message-archive-group "nnmaildir+marco:outbox")
(setq message-sendmail-envelope-from 'header)
(setq  mail-envelope-from 'header)
(setq message-send-mail-function 'message-send-mail-with-sendmail)
(setq sendmail-program "/usr/bin/msmtp")
(setq message-sendmail-envelope-from 'header)

;; we want to browse freely from gwene (RSS)
(setq gnus-safe-html-newsgroups "\\`nntp[+:]news\\.gwene\\.org[+:]") 

;; minimal but useful setup to manage different identities
(setq gnus-posting-styles '((".*"
                 (signature-file "~/.signature")
                 (name "Marco"))
                ("nnmaildir" 
                 (From (with-current-buffer gnus-article-buffer
                     (message-fetch-field "to"))))))

You're ready. Start emacs and type M-x gnus

Optional reading: 400 pages of manual.