X-Git-Url: https://plomlompom.com/repos/?p=config;a=blobdiff_plain;f=buster%2Fsetup_scripts%2Fsetup_mail.sh;h=dd8f80f8e63e3f60d03b3e39a76617cd90f05102;hp=09ae762dda88f387f03080d7e2114f039b4244fa;hb=decb103a10c87150712da651e9c5b99ac35dab26;hpb=d9ca3676e409eb87156bfe1be3f34666830b077d diff --git a/buster/setup_scripts/setup_mail.sh b/buster/setup_scripts/setup_mail.sh index 09ae762..dd8f80f 100755 --- a/buster/setup_scripts/setup_mail.sh +++ b/buster/setup_scripts/setup_mail.sh @@ -1,21 +1,26 @@ #!/bin/sh set -e +# Check we have the necessary arguments. if [ "$#" -lt 1 ]; then - echo 'Need mail for letsencrypt (and optionally old server IP).' + echo 'Need mail for letsencrypt, mail domain, and optionally old server IP.' false fi mail="$1" -old_server="$2" +mail_domain="$2" +old_server="$3" config_tree_prefix="${HOME}/config/buster" echo "postfix postfix/main_mailer_type string 'Internet Site'" | debconf-set-selections -echo "postfix postfix/mailname string $(hostname -f)" | debconf-set-selections +echo "postfix postfix/mailname string ${mail_domain}" | debconf-set-selections ./install_for_target.sh mail ./copy_dirtree.sh "${config_tree_prefix}/etc_files" "" mail nft -f /etc/nftables.conf + +# Rebuild aliases DB from /etc/aliases newaliases +# Update config files without overwriting defaults. 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 "${config_tree_prefix}/other_files/append_opendkim.conf" >> /etc/opendkim.conf @@ -27,31 +32,39 @@ cat "${config_tree_prefix}/other_files/append_opendkim.conf" >> /etc/opendkim.co # TODO: Is it auto-renewed? certbot certonly --standalone --agree-tos --no-eff-email -m "${mail}" -d "$(hostname -f)" +# For if FQDN != mail domain name. +sed -i "s/REPLACE_maildomain_ECALPER/${mail_domain}/g" /etc/mailutils.conf +sed -i "s/REPLACE_maildomain_ECALPER/${mail_domain}/g" /etc/postfix/main.cf + # 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 +opendkim-genkey -d "${mail_domain}" -D /etc/dkimkeys -s "${selector}" +sed -i "s/REPLACE_maildomain_ECALPER/${mail_domain}/g" /etc/opendkim.conf sed -i "s/REPLACE_selector_ECALPER/${selector}/g" /etc/opendkim.conf # Dovecot sieve filtering via LMTP. Without this, mail only gets -# delivered to /var/mail/…. +# delivered to /var/mail/…, with it /var/mail/… remains the fallback +# inbox, but all else is sieve-filtered to ~/mail/. cp "${config_tree_prefix}/other_files/dovecot.sieve" /home/plom/.dovecot.sieve chown plom:plom /home/plom/.dovecot.sieve +# In addition to our postfix server receiving mails, we funnel mails from a +# POP3 account into dovecot via fetchmail. It might make sense to adapt the +# ~/.dovecot.sieve to move mails targeted to the fetched mail account to their +# own mbox. cp "${config_tree_prefix}/other_files/fetchmailrc" /home/plom/.fetchmailrc chown plom:plom /home/plom/.fetchmailrc chmod 0700 /home/plom/.fetchmailrc + +# Pingmail setup. cp "${config_tree_prefix}/other_files/pingmailrc" /home/plom/.pingmailrc chown plom:plom /home/plom/.pingmailrc su -lc "cd && git clone https://plomlompom.com/repos/clone/pingmail" plom -systemctl daemon-reload # To allow IMAPS access. echo "ssl_cert = /etc/dovecot/conf.d/99-ssl-certs.conf echo "ssl_key = > /etc/dovecot/conf.d/99-ssl-certs.conf password=$(pwgen -s 100 1) -#echo 'mail_privileged_group = mail' >> /etc/dovecot/conf.d/99-mail.conf echo "plom:${password}" | chpasswd # Get old mail data, shutdown old postfix server. @@ -64,7 +77,9 @@ if [ "${old_server}" != "" ]; then 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 + su -lc "ssh -t plom@${old_server} \"su -lc 'service postfix stop'\"" plom + #su -lc "ssh plom@${old_server} \"su -lc 'service fetchmail_old_account stop'\"" plom + su -lc "ssh -t plom@${old_server} \"su -lc 'service fetchmail stop'\"" plom cp "${config_tree_prefix}/setup_scripts/mirror_dir.sh" /home/plom/ su -lc "./mirror_dir.sh ${old_server} /home/plom/mail" plom rm /home/plom/mirror_dir.sh @@ -74,10 +89,18 @@ if [ "${old_server}" != "" ]; then su -lc "scp plom@${old_server}:/var/mail/plom /var/mail/plom" plom fi +# Start everything anew to ensure new configurations. service opendkim restart service postfix restart service dovecot restart +# Pingmail and fetchmail have some systemd timers waiting. To let systemd +# know about them, do this. +systemctl daemon-reload +systemctl enable --now fetchmail_old_account.timer +systemctl enable --now pingmail.timer + +# Final advice to user. echo "To put into DNS:" cat "/etc/dkimkeys/${selector}.txt" echo "If subdomain, append .subdomain to _domainkeys!" @@ -88,32 +111,8 @@ echo "Also ensure MX record of priority 10 for @ or subdomain pointing to $(host echo "IMAPS password for user plom is: ${password}" # todo just for proper mail /sending/: -# * figure out /etc/mailname ("used by the Mail Transfer Agent (i.e. mail server) to know its own hostname", "will contain the portion after the username and @ (at) sign for email addresses of users on the machine", "Postfix sets myorigin=/etc/mailname. Myorigin is appended (with an @) to any bare name in any address field. During (re)configure, if /etc/mailname exists, it is used as the default value for myorigin in debconf dialogs. Changing it from the default results in postinst rewriting /etc/mailname to the new value.") – figure out if it is actually used? -# * figure out /etc/postfix/main.cf -# - myorigin ("specifies the domain that appears in mail that is posted on this machine. The default is to use the local machine name, $myhostname, which defaults to the name of the machine. Unless you are running a really small site, you probably want to change that into $mydomain, which defaults to the parent domain of the machine name") -# - myhostname ("The internet hostname of this mail system. The default is to use the fully-qualified domain name (FQDN) from gethostname(), or to use the non-FQDN result from gethostname() and append ".$mydomain". $myhostname is used as a default value for many other configuration parameters.") -# - mydomain ("The internet domain name of this mail system. The default is to use $myhostname minus the first component, or "localdomain" (Postfix 2.3 and later). $mydomain is used as a default value for many other configuration parameters.") -# - relay_domains ("What destination domains (and subdomains thereof) this system will relay mail to") -# - mydestination ("The list of domains that are delivered via the $local_transport mail delivery transport.") -# * figure out /etc/postfix/master.cf (configures what postfix daemons run in what way?) # * how to check IP safety # https://talosintelligence.com/reputation_center/lookup?search=$IP # http://www.anti-abuse.org/multi-rbl-check-results/?host= # https://www.dnsbl.info/dnsbl-database-check.php # note that none of these catch the IPs that gmx etc. reject - -# other stuff: -# * figure out /etc/aliases (maps whom what is sent to – just re-use old core.plomlompom.com one? – also, run newaliases to generate /etc/aliases.db) -# * more /etc/postfix/main.cf -# - smtpd_recipient_restrictions -# - smtpd_helo_restrictions -# - smtpd_client_restrictions -# -# for using SMTP server remotely: -# - SASL mechanism, may use dovecot for that (smtpd_sasl_type, smtpd_sasl_path) -# - see https://wiki2.dovecot.org/HowTo/PostfixAndDovecotSASL -# - SASL is not a protocol but an abstraction layer to some auth mechanism -# - SSL works on transport layer -# - 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