X-Git-Url: https://plomlompom.com/repos/?a=blobdiff_plain;ds=sidebyside;f=buster%2Fsetup_scripts%2Fsetup_mail.sh;h=81200178b3460dd3beaabcf1eb0667bb971d08be;hb=aae632220a69c5944afad87ca284b907f8e0178e;hp=9406bee16fd461f670f34117565221eb1cf9194a;hpb=b427e539c34c181ee681c249d8ba564f0c0d1d87;p=config diff --git a/buster/setup_scripts/setup_mail.sh b/buster/setup_scripts/setup_mail.sh index 9406bee..8120017 100755 --- a/buster/setup_scripts/setup_mail.sh +++ b/buster/setup_scripts/setup_mail.sh @@ -1,11 +1,12 @@ #!/bin/sh set -e -if [ "$#" -ne 1 ]; then - echo 'Need mail for letsencrypt.' +if [ "$#" -lt 1 ]; then + echo 'Need mail for letsencrypt (and optionally old server IP).' false fi mail="$1" +old_server="$2" config_tree_prefix="${HOME}/config/buster" echo "postfix postfix/main_mailer_type string 'Internet Site'" | debconf-set-selections @@ -13,59 +14,67 @@ echo "postfix postfix/mailname string $(hostname -f)" | debconf-set-selections ./install_for_target.sh mail ./copy_dirtree.sh "${config_tree_prefix}/etc_files" "" mail nft -f /etc/nftables.conf +newaliases -# Set up letsencrypt certificate. +cat "${config_tree_prefix}/other_files/append_postfix_main.cf" >> /etc/postfix/main.cf +cat "${config_tree_prefix}/other_files/append_postfix_master.cf" >> /etc/postfix/master.cf +cat "${config_tree_prefix}/other_files/append_opendkim.conf" >> /etc/opendkim.conf + +# Set up letsencrypt certificate. We need this for STARTTLS on port +# 25/SMTP (some mail servers refuse delivering mails here if no +# STARTTLS available) and transport-layer TLS on port 465 (for +# user-to-server SMTPS) # TODO: Is it auto-renewed? -# TODO: Find out if/why this works despite firewall? certbot certonly --standalone --agree-tos --no-eff-email -m "${mail}" -d "$(hostname -f)" -# generate opendkim selector +# OpenDKIM setup. selector=$(hostname)$(date +%Y%m%d) #opendkim-genkey -D /etc/dkimkeys -s "${selector}" opendkim-genkey -d "$(hostname -f)" -D /etc/dkimkeys -s "${selector}" +sed -i "s/REPLACE_hostname_ECALPER/$(hostname -f)/g" /etc/opendkim.conf +sed -i "s/REPLACE_selector_ECALPER/${selector}/g" /etc/opendkim.conf -# customize /etc/opendkim.conf -echo '' >> /etc/opendkim.conf -echo '# plomlompom customizations' >> /etc/opendkim.conf -echo "Domain $(hostname -f)" >> /etc/opendkim.conf -echo "KeyFile /etc/dkimkeys/${selector}.private" >> /etc/opendkim.conf -echo "Selector ${selector}" >> /etc/opendkim.conf -echo 'Socket inet:8892@localhost' >> /etc/opendkim.conf - -# customize /etc/postfix/main.cf -echo '' >> /etc/postfix/main.cf -echo '# opendkim milter' >> /etc/postfix/main.cf -echo 'non_smtpd_milters = inet:localhost:8892' >> /etc/postfix/main.cf -echo '' >> /etc/postfix/main.cf -echo '# TLS certs' -echo 'smtpd_tls_cert_file=/etc/letsencrypt/live/${myhostname}/fullchain.pem' >> /etc/postfix/main.cf -echo 'smtpd_tls_key_file=/etc/letsencrypt/live/${myhostname}/privkey.pem' >> /etc/postfix/main.cf - -# TODO: consider - -# Dovecot sieve filtering via LMTP -echo '' >> /etc/postfix/main.cf -echo '# transport mail to dovecot; not strictly needed, as even without this' >> /etc/postfix/main.cf -echo '# postfix will throw mail to /var/mail/USER to be found by dovecot for' >> /etc/postfix/main.cf -echo "# serving via IMAP etc.; but using dovecot's LMTP server for delivery" >> /etc/postfix/main.cf -echo '# allows us to do stuff like dovecot-side sieve filtering.' >> /etc/postfix/main.cf -echo 'mailbox_transport = lmtp:inet:127.0.0.1:2424' >> /etc/postfix/main.cf +# Dovecot sieve filtering via LMTP. Without this, mail only gets +# delivered to /var/mail/…. cp "${config_tree_prefix}/other_files/dovecot.sieve" /home/plom/.dovecot.sieve chown plom:plom /home/plom/.dovecot.sieve -# To allow IMAPS access +cp "${config_tree_prefix}/other_files/fetchmailrc" /home/plom/.fetchmailrc +chown plom:plom /home/plom/.fetchmailrc +chmod 0700 /home/plom/.fetchmailrc +cp "${config_tree_prefix}/other_files/pingmailrc" /home/plom/.pingmailrc +chown plom:plom /home/plom/.pingmailrc +su -lc "cd && git clone https://plomlompom.com/repos/clone/pingmail" plom +systemctl daemon-reload +systemctl enable --now fetchmail_old_account.timer +systemctl enable --now pingmail.timer + +# To allow IMAPS access. echo "ssl_cert = /etc/dovecot/conf.d/99-ssl-certs.conf echo "ssl_key = > /etc/dovecot/conf.d/99-ssl-certs.conf password=$(pwgen -s 100 1) #echo 'mail_privileged_group = mail' >> /etc/dovecot/conf.d/99-mail.conf echo "plom:${password}" | chpasswd -# To use Dovecot SASL for SMTP access. -echo '' >> /etc/postfix/main.cf -echo '# use dovecot SASL for SMTP access' >> /etc/postfix/main.cf -echo 'smtpd_sasl_type = dovecot' >> /etc/postfix/main.cf -echo 'smtpd_sasl_path = private/auth' >> /etc/postfix/main.cf -echo 'smtpd_sasl_auth_enable = yes' >> /etc/postfix/main.cf +# Get old mail data, shutdown old postfix server. +if [ "${old_server}" != "" ]; then + cp "${config_tree_prefix}/setup_scripts/prepare_to_meet_server.sh" /home/plom/ + #chown plom:plom /home/plom/prepare_to_meet_server.sh + su -lc "./prepare_to_meet_server.sh ${old_server}" plom + read -p'Hit Enter when you are done.' ignore + rm /home/plom/prepare_to_meet_server.sh + su -lc "scp plom@${old_server}:.dovecot.sieve ~" plom + su -lc "scp plom@${old_server}:.fetchmailrc ~" plom + su -lc "scp plom@${old_server}:.pingmailrc ~" plom + su -lc "ssh plom@${old_server} \"su -lc 'service postfix stop'\"" plom + cp "${config_tree_prefix}/setup_scripts/mirror_dir.sh" /home/plom/ + su -lc "./mirror_dir.sh ${old_server} /home/plom/mail" plom + rm /home/plom/mirror_dir.sh + touch /var/mail/plom + chown plom:mail /var/mail/plom + chmod 0600 /var/mail/plom + su -lc "scp plom@${old_server}:/var/mail/plom /var/mail/plom" plom +fi service opendkim restart service postfix restart @@ -75,7 +84,7 @@ echo "To put into DNS:" cat "/etc/dkimkeys/${selector}.txt" echo "If subdomain, append .subdomain to _domainkeys!" echo "Also ensure DMARC record of 'v=DMARC1; p=none; rua=mailto:plom+dmarc@plomlompom.com;' as TXT entry at _dmarc or, if subdomain, _dmarc.subdomain" -echo "Also ensure SPF record of 'v=spf1 mx -all' at @ or subdomain" +echo "Also ensure SPF record of 'v=spf1 mx -all' as TXT entry at @ or subdomain" echo "Also ensure reverse DNS lookup for our IP points to $(hostname -f)" echo "Also ensure MX record of priority 10 for @ or subdomain pointing to $(hostname -f)" echo "IMAPS password for user plom is: ${password}" @@ -110,5 +119,3 @@ echo "IMAPS password for user plom is: ${password}" # - wild guess: TLS/SSL is used to authenticate /the server/ to the client, while SASL is used to identify /the client/ to the server # - then it should be possible to do SASL without TLS/STARTTLS first? (experiment) # - the telnet test should offer AUTH then without doing STARTTLS first -# -# for receiving mails: make sure firewall opens SMTP port 25, and for STARTTLS to work need certificate installed (set in postfix/main.cf) – some providers only deliver via STARTTLS, i.e. GMail – this all only delivers mails to /var/mail/…, dovecot should do more then