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1 | { lib, pkgs, config, ... }: | |
2 | let | |
3 | sieve_bin = pkgs.runCommand "sieve_bin" { | |
4 | buildInputs = [ pkgs.makeWrapper ]; | |
5 | } '' | |
6 | cp -a ${./sieve_bin} $out | |
7 | chmod -R u+w $out | |
8 | patchShebangs $out | |
9 | for i in $out/*; do | |
10 | wrapProgram "$i" --prefix PATH : ${lib.makeBinPath [ pkgs.coreutils ]} | |
11 | done | |
12 | ''; | |
13 | in | |
14 | { | |
15 | config = lib.mkIf config.myServices.mail.enable { | |
16 | systemd.services.dovecot2.serviceConfig.Slice = "mail.slice"; | |
17 | services.duplyBackup.profiles.mail.excludeFile = '' | |
18 | + /var/lib/dhparams | |
19 | + /var/lib/dovecot | |
20 | ''; | |
21 | secrets.keys = [ | |
22 | { | |
23 | dest = "dovecot/ldap"; | |
24 | user = config.services.dovecot2.user; | |
25 | group = config.services.dovecot2.group; | |
26 | permissions = "0400"; | |
27 | text = '' | |
28 | hosts = ${config.myEnv.mail.dovecot.ldap.host} | |
29 | tls = yes | |
30 | ||
31 | dn = ${config.myEnv.mail.dovecot.ldap.dn} | |
32 | dnpass = ${config.myEnv.mail.dovecot.ldap.password} | |
33 | ||
34 | auth_bind = yes | |
35 | ||
36 | ldap_version = 3 | |
37 | ||
38 | base = ${config.myEnv.mail.dovecot.ldap.base} | |
39 | scope = subtree | |
40 | ||
41 | pass_filter = ${config.myEnv.mail.dovecot.ldap.filter} | |
42 | pass_attrs = ${config.myEnv.mail.dovecot.ldap.pass_attrs} | |
43 | ||
44 | user_attrs = ${config.myEnv.mail.dovecot.ldap.user_attrs} | |
45 | user_filter = ${config.myEnv.mail.dovecot.ldap.filter} | |
46 | iterate_attrs = ${config.myEnv.mail.dovecot.ldap.iterate_attrs} | |
47 | iterate_filter = ${config.myEnv.mail.dovecot.ldap.iterate_filter} | |
48 | ''; | |
49 | } | |
50 | ]; | |
51 | ||
52 | users.users.vhost = { | |
53 | group = "vhost"; | |
54 | uid = config.ids.uids.vhost; | |
55 | }; | |
56 | users.groups.vhost.gid = config.ids.gids.vhost; | |
57 | ||
58 | # https://blog.zeninc.net/index.php?post/2018/04/01/Un-annuaire-pour-les-gouverner-tous....... | |
59 | services.dovecot2 = { | |
60 | enable = true; | |
61 | enablePAM = false; | |
62 | enablePop3 = true; | |
63 | enableImap = true; | |
64 | enableLmtp = true; | |
65 | protocols = [ "sieve" ]; | |
66 | modules = [ | |
67 | pkgs.dovecot_pigeonhole | |
68 | pkgs.dovecot_fts-xapian | |
69 | ]; | |
70 | mailUser = "vhost"; | |
71 | mailGroup = "vhost"; | |
72 | createMailUser = false; | |
73 | mailboxes = { | |
74 | Trash = { auto = "subscribe"; specialUse = "Trash"; }; | |
75 | Junk = { auto = "subscribe"; specialUse = "Junk"; }; | |
76 | Sent = { auto = "subscribe"; specialUse = "Sent"; }; | |
77 | Drafts = { auto = "subscribe"; specialUse = "Drafts"; }; | |
78 | }; | |
79 | mailLocation = "mbox:~/Mail:INBOX=~/Mail/Inbox:INDEX=~/.imap"; | |
80 | sslServerCert = "/var/lib/acme/mail/fullchain.pem"; | |
81 | sslServerKey = "/var/lib/acme/mail/key.pem"; | |
82 | sslCACert = "/var/lib/acme/mail/fullchain.pem"; | |
83 | extraConfig = builtins.concatStringsSep "\n" [ | |
84 | # For printer which doesn’t support elliptic curve | |
85 | '' | |
86 | ssl_alt_cert = </var/lib/acme/mail-rsa/fullchain.pem | |
87 | ssl_alt_key = </var/lib/acme/mail-rsa/key.pem | |
88 | '' | |
89 | ||
90 | '' | |
91 | postmaster_address = postmaster@immae.eu | |
92 | mail_attribute_dict = file:%h/dovecot-attributes | |
93 | imap_idle_notify_interval = 20 mins | |
94 | namespace inbox { | |
95 | type = private | |
96 | separator = / | |
97 | inbox = yes | |
98 | list = yes | |
99 | } | |
100 | '' | |
101 | ||
102 | # ACL | |
103 | '' | |
104 | mail_plugins = $mail_plugins acl | |
105 | plugin { | |
106 | acl = vfile:${pkgs.writeText "dovecot-acl" '' | |
107 | Backup/* owner lrp | |
108 | ''} | |
109 | acl_globals_only = yes | |
110 | } | |
111 | '' | |
112 | ||
113 | # Full text search | |
114 | '' | |
115 | # needs to be bigger than any mailbox size | |
116 | default_vsz_limit = 2GB | |
117 | mail_plugins = $mail_plugins fts fts_xapian | |
118 | plugin { | |
119 | plugin = fts fts_xapian | |
120 | fts = xapian | |
121 | fts_xapian = partial=2 full=20 | |
122 | fts_autoindex = yes | |
123 | fts_autoindex_exclude = \Junk | |
124 | fts_autoindex_exclude2 = \Trash | |
125 | fts_autoindex_exclude3 = Virtual/* | |
126 | } | |
127 | '' | |
128 | ||
129 | # Antispam | |
130 | # https://docs.iredmail.org/dovecot.imapsieve.html | |
131 | '' | |
132 | # imap_sieve plugin added below | |
133 | ||
134 | plugin { | |
135 | sieve_plugins = sieve_imapsieve sieve_extprograms | |
136 | imapsieve_url = sieve://127.0.0.1:4190 | |
137 | ||
138 | sieve_before = file:${./sieve_scripts}/backup.sieve;bindir=/var/lib/vhost/.sieve_bin | |
139 | ||
140 | # From elsewhere to Junk folder | |
141 | imapsieve_mailbox1_name = Junk | |
142 | imapsieve_mailbox1_causes = COPY APPEND | |
143 | imapsieve_mailbox1_before = file:${./sieve_scripts}/report_spam.sieve;bindir=/var/lib/vhost/.imapsieve_bin | |
144 | ||
145 | # From Junk folder to elsewhere | |
146 | imapsieve_mailbox2_name = * | |
147 | imapsieve_mailbox2_from = Junk | |
148 | imapsieve_mailbox2_causes = COPY | |
149 | imapsieve_mailbox2_before = file:${./sieve_scripts}/report_ham.sieve;bindir=/var/lib/vhost/.imapsieve_bin | |
150 | ||
151 | # From anywhere to NoJunk folder | |
152 | imapsieve_mailbox3_name = NoJunk | |
153 | imapsieve_mailbox3_causes = COPY APPEND | |
154 | imapsieve_mailbox3_before = file:${./sieve_scripts}/report_ham.sieve;bindir=/var/lib/vhost/.imapsieve_bin | |
155 | ||
156 | sieve_pipe_bin_dir = ${sieve_bin} | |
157 | ||
158 | sieve_global_extensions = +vnd.dovecot.pipe +vnd.dovecot.environment | |
159 | } | |
160 | '' | |
161 | # Services to listen | |
162 | '' | |
163 | service imap-login { | |
164 | inet_listener imap { | |
165 | } | |
166 | inet_listener imaps { | |
167 | } | |
168 | } | |
169 | service pop3-login { | |
170 | inet_listener pop3 { | |
171 | } | |
172 | inet_listener pop3s { | |
173 | } | |
174 | } | |
175 | service imap { | |
176 | } | |
177 | service pop3 { | |
178 | } | |
179 | service auth { | |
180 | unix_listener auth-userdb { | |
181 | } | |
182 | unix_listener ${config.services.postfix.config.queue_directory}/private/auth { | |
183 | mode = 0666 | |
184 | } | |
185 | } | |
186 | service auth-worker { | |
187 | } | |
188 | service dict { | |
189 | unix_listener dict { | |
190 | } | |
191 | } | |
192 | service stats { | |
193 | unix_listener stats-reader { | |
194 | user = vhost | |
195 | group = vhost | |
196 | mode = 0660 | |
197 | } | |
198 | unix_listener stats-writer { | |
199 | user = vhost | |
200 | group = vhost | |
201 | mode = 0660 | |
202 | } | |
203 | } | |
204 | '' | |
205 | ||
206 | # Authentification | |
207 | '' | |
208 | first_valid_uid = ${toString config.ids.uids.vhost} | |
209 | disable_plaintext_auth = yes | |
210 | passdb { | |
211 | driver = ldap | |
212 | args = ${config.secrets.fullPaths."dovecot/ldap"} | |
213 | } | |
214 | userdb { | |
215 | driver = ldap | |
216 | args = ${config.secrets.fullPaths."dovecot/ldap"} | |
217 | } | |
218 | '' | |
219 | ||
220 | # Zlib | |
221 | '' | |
222 | mail_plugins = $mail_plugins zlib | |
223 | plugin { | |
224 | zlib_save_level = 6 | |
225 | zlib_save = gz | |
226 | } | |
227 | '' | |
228 | ||
229 | # Sieve | |
230 | '' | |
231 | plugin { | |
232 | sieve = file:~/sieve;bindir=~/.sieve-bin;active=~/.dovecot.sieve | |
233 | } | |
234 | service managesieve-login { | |
235 | } | |
236 | service managesieve { | |
237 | } | |
238 | '' | |
239 | ||
240 | # Virtual mailboxes | |
241 | '' | |
242 | mail_plugins = $mail_plugins virtual | |
243 | namespace Virtual { | |
244 | prefix = Virtual/ | |
245 | location = virtual:~/Virtual | |
246 | } | |
247 | '' | |
248 | ||
249 | # Protocol specific configuration | |
250 | # Needs to come last if there are mail_plugins entries | |
251 | '' | |
252 | protocol imap { | |
253 | mail_plugins = $mail_plugins imap_sieve imap_acl | |
254 | } | |
255 | protocol lda { | |
256 | mail_plugins = $mail_plugins sieve | |
257 | } | |
258 | '' | |
259 | ]; | |
260 | }; | |
261 | networking.firewall.allowedTCPPorts = [ 110 143 993 995 4190 ]; | |
262 | system.activationScripts.dovecot = { | |
263 | deps = [ "users" ]; | |
264 | text ='' | |
265 | install -m 0755 -o vhost -g vhost -d /var/lib/vhost | |
266 | ''; | |
267 | }; | |
268 | ||
269 | services.cron.systemCronJobs = let | |
270 | cron_script = pkgs.writeScriptBin "cleanup-imap-folders" '' | |
271 | ${pkgs.dovecot}/bin/doveadm expunge -A MAILBOX "Backup/*" NOT FLAGGED BEFORE 8w 2>&1 > /dev/null | grep -v "Mailbox doesn't exist:" | grep -v "Info: Opening DB" | |
272 | ${pkgs.dovecot}/bin/doveadm expunge -A MAILBOX Junk SEEN NOT FLAGGED BEFORE 4w 2>&1 > /dev/null | grep -v "Mailbox doesn't exist:" | grep -v "Info: Opening DB" | |
273 | ${pkgs.dovecot}/bin/doveadm expunge -A MAILBOX Trash NOT FLAGGED BEFORE 4w 2>&1 > /dev/null | grep -v "Mailbox doesn't exist:" | grep -v "Info: Opening DB" | |
274 | ''; | |
275 | in | |
276 | [ | |
277 | "0 2 * * * root ${cron_script}/bin/cleanup-imap-folders" | |
278 | ]; | |
279 | security.acme.certs."mail-rsa" = { | |
280 | postRun = '' | |
281 | systemctl restart dovecot2.service | |
282 | ''; | |
283 | extraDomains = { | |
284 | "imap.immae.eu" = null; | |
285 | "pop3.immae.eu" = null; | |
286 | }; | |
287 | }; | |
288 | security.acme.certs."mail" = { | |
289 | postRun = '' | |
290 | systemctl restart dovecot2.service | |
291 | ''; | |
292 | extraDomains = { | |
293 | "imap.immae.eu" = null; | |
294 | "pop3.immae.eu" = null; | |
295 | }; | |
296 | }; | |
297 | }; | |
298 | } | |
299 |