From aaf33e220b1412c03b5725abe7cf165c06588fb5 Mon Sep 17 00:00:00 2001 From: Gregor Kleen Date: Sat, 7 Jun 2025 13:00:03 +0200 Subject: ... --- hosts/sif/email/default.nix | 110 +++++++++++++++++++++++++++++++++++++++++++ hosts/sif/email/relay.crt | 11 +++++ hosts/sif/email/relay.key | 19 ++++++++ hosts/sif/email/secrets.yaml | 30 ++++++++++++ 4 files changed, 170 insertions(+) create mode 100644 hosts/sif/email/default.nix create mode 100644 hosts/sif/email/relay.crt create mode 100644 hosts/sif/email/relay.key create mode 100644 hosts/sif/email/secrets.yaml (limited to 'hosts/sif/email') diff --git a/hosts/sif/email/default.nix b/hosts/sif/email/default.nix new file mode 100644 index 00000000..4eda236e --- /dev/null +++ b/hosts/sif/email/default.nix @@ -0,0 +1,110 @@ +{ config, lib, pkgs, ... }: +{ + services.postfix = { + enable = true; + enableSmtp = false; + enableSubmission = false; + setSendmail = true; + networksStyle = "host"; + hostname = "sif.midgard.yggdrasil"; + destination = []; + recipientDelimiter = "+"; + config = { + mydomain = "yggdrasil.li"; + + local_transport = "error:5.1.1 No local delivery"; + alias_database = []; + alias_maps = []; + local_recipient_maps = []; + + inet_interfaces = "loopback-only"; + + message_size_limit = "0"; + + authorized_submit_users = "inline:{ gkleen= }"; + authorized_flush_users = "inline:{ gkleen= }"; + authorized_mailq_users = "inline:{ gkleen= }"; + + smtp_generic_maps = "inline:{ root=root+sif }"; + + mynetworks = ["127.0.0.0/8" "[::1]/128"]; + smtpd_client_restrictions = ["permit_mynetworks" "reject"]; + smtpd_relay_restrictions = ["permit_mynetworks" "reject"]; + + sender_dependent_default_transport_maps = ''regexp:${pkgs.writeText "sender_relay" '' + /@(cip|stud)\.ifi\.(lmu|uni-muenchen)\.de$/ smtp:smtp.ifi.lmu.de + /@ifi\.(lmu|uni-muenchen)\.de$/ smtp:smtpin1.ifi.lmu.de:587 + /@math(ematik)?\.(lmu|uni-muenchen)\.de$/ smtps:smtp.math.lmu.de:465 + /@(campus\.)?lmu\.de$/ smtp:postout.lrz.de + ''}''; + sender_bcc_maps = ''regexp:${pkgs.writeText "sender_bcc" '' + /^uni2work(-[^@]*)?@ifi\.lmu\.de$/ uni2work@ifi.lmu.de + /@ifi\.lmu\.de$/ gregor.kleen@ifi.lmu.de + ''}''; + relayhost = "[surtr.yggdrasil.li]:465"; + default_transport = "relay"; + + smtp_sasl_auth_enable = true; + smtp_sender_dependent_authentication = true; + smtp_sasl_tls_security_options = "noanonymous"; + smtp_sasl_mechanism_filter = ["plain"]; + smtp_sasl_password_maps = "regexp:/run/credentials/postfix.service/sasl_passwd"; + smtp_cname_overrides_servername = false; + smtp_always_send_ehlo = true; + smtp_tls_security_level = "dane"; + + smtp_tls_loglevel = "1"; + smtp_dns_support_level = "dnssec"; + }; + masterConfig = { + submission = { + type = "inet"; + private = false; + command = "smtpd"; + args = [ + "-o" "syslog_name=postfix/$service_name" + ]; + }; + smtp = { }; + smtps = { + type = "unix"; + private = true; + privileged = true; + chroot = false; + command = "smtp"; + args = [ + "-o" "smtp_tls_wrappermode=yes" + "-o" "smtp_tls_security_level=encrypt" + ]; + }; + relay = { + command = "smtp"; + args = [ + "-o" "smtp_fallback_relay=" + "-o" "smtp_tls_security_level=verify" + "-o" "smtp_tls_wrappermode=yes" + "-o" "smtp_tls_cert_file=${./relay.crt}" + "-o" "smtp_tls_key_file=/run/credentials/postfix.service/relay.key" + ]; + }; + }; + }; + + systemd.services.postfix = { + serviceConfig.LoadCredential = [ + "sasl_passwd:${config.sops.secrets."postfix-sasl-passwd".path}" + "relay.key:${config.sops.secrets."relay-key".path}" + ]; + }; + + sops.secrets = { + postfix-sasl-passwd = { + key = "sasl-passwd"; + sopsFile = ./secrets.yaml; + }; + relay-key = { + format = "binary"; + sopsFile = ./relay.key; + }; + }; +} diff --git a/hosts/sif/email/relay.crt b/hosts/sif/email/relay.crt new file mode 100644 index 00000000..ac13e7cb --- /dev/null +++ b/hosts/sif/email/relay.crt @@ -0,0 +1,11 @@ +-----BEGIN CERTIFICATE----- +MIIBjDCCAQygAwIBAgIPQAAAAGgLfNoL/PSMAsutMAUGAytlcTAXMRUwEwYDVQQD +DAx5Z2dkcmFzaWwubGkwHhcNMjUwNDI1MTIwOTQ1WhcNMzUwNDI2MTIxNDQ1WjAR +MQ8wDQYDVQQDDAZna2xlZW4wKjAFBgMrZXADIQB3outi3/3F4YO7Q97WAAaMHW0a +m+Blldrgee+EZnWnD6N1MHMwHwYDVR0jBBgwFoAUTtn+VjMw6Ge1f68KD8dT1CWn +l3YwHQYDVR0OBBYEFFOa4rYZYMbXUVdKv98NB504GUhjMA4GA1UdDwEB/wQEAwID +6DAMBgNVHRMBAf8EAjAAMBMGA1UdJQQMMAoGCCsGAQUFBwMCMAUGAytlcQNzABC0 +0UgIt7gLZrU1TmzGoqPBris8R1DbKOJacicF5CU0MIIjHcX7mPFW8KtB4qm6KcPq +kF6IaEPmgKpX3Nubk8HJik9vhIy9ysfINcVTvzXx8pO1bxbvREJRyA/apj10nzav +yauId0cXHvN6g5RLAMsMAA== +-----END CERTIFICATE----- diff --git a/hosts/sif/email/relay.key b/hosts/sif/email/relay.key new file mode 100644 index 00000000..412a44e0 --- /dev/null +++ b/hosts/sif/email/relay.key @@ -0,0 +1,19 @@ +{ + "data": "ENC[AES256_GCM,data:lBlTuzOS75pvRmcTKT4KhHMH44RlE2SvCFAUP+GfsXws1Uai7DZ1MmbhvxxCa+pcLW19+sQYxrXLRNZWby1yOeKBJ2UQeYV5LOk9LSL/WIE3FZkCo5Dv0O0gSFKjjb61WN22a4JnHbLWADf/mLT3GZv91XfvFDo=,iv:ho8wQH3UNzX9JPW5gVcUGtxZzdVwsMFus0Z4KYe5t48=,tag:dAgZyHOva2xVVhE1nTl+lg==,type:str]", + "sops": { + "age": [ + { + "recipient": "age1rmmhetcmllq0ahl5qznlr0eya2zdxwl9h6y5wnl97d2wtyx5t99sm2u866", + "enc": "-----BEGIN AGE ENCRYPTED FILE-----\nYWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSB6eTVRSUdFNUZGZmcxSUlT\nWmlsOGNyWXIzMGNTZjlKbXlhcEdZUXFRVkR3Cll0T0RMd0h2UW16QkR3SHlhYmNZ\nNDFrYXh3Rkp5NWsvcWc3UFJJaHVwT1UKLS0tIHhXVEI0VHBZVkpDQ1FzWENjMmJH\nb1FQWXVUUTBiZ1pKWG00MTNqVEo2SjAKK3VOU+QgRuxWYWEcrJiVMRFCprBICz4F\ngD+9zuPUzPezyJkYwTs+M+wX5GYkXppqm5W58yQLS2UDD38sr+SRjg==\n-----END AGE ENCRYPTED FILE-----\n" + }, + { + "recipient": "age1fj65apkhfkrwyv5tx6zcs9nkjg8267fy733qph30sc7zfn7vapjqkd5kne", + "enc": "-----BEGIN AGE ENCRYPTED FILE-----\nYWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSBzWmJmZDVFazN2bDY1TkNG\nNXpJN2twMFFjZUxMTVdSNzJwQTFiYktrcGdrCjk4eFVHTko0bFVMSlFFWm9tbjMr\nbWNHMEQ1Rm1qUVhodlB1RGw2aDc4TUEKLS0tIERBK0J5NkN4OXJEZ1ZOZXhNc1Jm\naWNnUmZGbTIxdmNkYi9TZ2h2bGs3MVEKPQGaEf7M/5/xvSOfawpIp50fB3QfFSuz\nPgkrPMneaBeUx+uBYMyEFX4rpzLIBR3pnYMjAfoc+bjWaOtGQuEqyQ==\n-----END AGE ENCRYPTED FILE-----\n" + } + ], + "lastmodified": "2025-04-25T12:14:44Z", + "mac": "ENC[AES256_GCM,data:pObl2bJA93az9E3Ya+hA3ekI8TKKZ9NNTi0KzmWZBOiQwi9FuQYtpnmmT80L1KXWyOKJV6wGdAri3mNe/ue2S0TziSbQ/4+Dj4ubFKgkH7thb5q2dFyxw5FzhYzRQiXFqD/pxcNN9uL0lQI2Al0Eci0zX8Kcd1rAQ6RzLEoSmco=,iv:zo/3QFKTUEDxLy1k5yyU7Z1JMZ7cKdYUc6GHjaTTZKQ=,tag:f63Eja3lBfwJCYAOyEt56g==,type:str]", + "unencrypted_suffix": "_unencrypted", + "version": "3.10.2" + } +} diff --git a/hosts/sif/email/secrets.yaml b/hosts/sif/email/secrets.yaml new file mode 100644 index 00000000..3c74b710 --- /dev/null +++ b/hosts/sif/email/secrets.yaml @@ -0,0 +1,30 @@ +sasl-passwd: ENC[AES256_GCM,data:L5QOQTEOplm9rQ+PuyDUl492ZTgIgZdRXNCNRaPQ4FLU+ha0GO7rjYWAOtvW7/oVdALrkQveSpBolnLG0nayvkjLpPuA6o9brR6bky52QmhOd8cYN9LMOhJcLJTwpUuvDesXkJD1mWA+ifuPnK6elVEfPuOndzMyw8MEvbPl53yCKQ7HOJc2nGvneD5QFkiHB9W9MmrR1gjGqaCSjZ0ahCnxe/Z2SwqccmBR9l60vt683RXMYbKNLDuSgE7HcXbzF9NstfnoSq7b332y/NgYsXvY0w+f6yPhsDuPhUXU+7gIcPb4+1TFOtdZP8uIPm1aLqG2nNKNhMGt23X8dD5Myy0FF6XmbTj43mDzKJahNel7pT91d+Vac5s08UeyUpQSjtrVMYneVTYbHEwiFPAD7S57LF0kZuE1aXIRF35g6XV3GB4rQDsrBsrZzn9vsGS12L2pdtYFVCvt/dLFlmd/GjPpm4JWyNSg,iv:fUEBrr1iby7+hK8ZesW+77HLMW93c6LpCcoJy8pgXUE=,tag:cW8vKVAebnJqo1gNNwDohQ==,type:str] +sops: + kms: [] + gcp_kms: [] + azure_kv: [] + hc_vault: [] + age: + - recipient: age1rmmhetcmllq0ahl5qznlr0eya2zdxwl9h6y5wnl97d2wtyx5t99sm2u866 + enc: | + -----BEGIN AGE ENCRYPTED FILE----- + YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSA1MVYrR1ZrUXVhYVIvdTdS + OUxoOGhRZ3p2dFhCYkxta1REYy9FWTFEZVNJCjhpQ0VMcWdkWWQ1blZyVVpGWk81 + UVBTZzNKSis2ZVVNdFA4TldvL05oMWcKLS0tIEl0TU8xQUhkTk83dDhzYU5aeCtR + OVcrdFRaeGxZL2kxT3VzUnBtWEI1Y1UK8LwKTus25P/nQrMJG5MOuR/lD2PCgeLC + WYBIbFusX//mwr1nymyWnHXkfXf8uHzpc6rJGFoa+TuOVU3elYB/Pg== + -----END AGE ENCRYPTED FILE----- + - recipient: age1fj65apkhfkrwyv5tx6zcs9nkjg8267fy733qph30sc7zfn7vapjqkd5kne + enc: | + -----BEGIN AGE ENCRYPTED FILE----- + YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSBQcUs2OGp6WWN5cm9IVDdx + TFRpZTJXQjBXeGp3RytPaFdjR3UyVURnYmhZCnh3SDNYR0J1US9vcEhTbmJCNm5r + emJReml2QTNkTC93M0lpYlpNbTc4TGsKLS0tIGZ4YkE4STQ2dmh4akJVcnZOUVhT + MTNrOGxqZmFWSnl0U3lVTnllbEFTN28KKv/W6tk2YlNQV8fotfjSLg1HOs6OdMj4 + GkZ30jQYfwmFYEA8YPn9JXbVNpprXd0d6ufLl/tAQckT6lsqGhwzeg== + -----END AGE ENCRYPTED FILE----- + lastmodified: "2022-02-02T14:45:23Z" + mac: ENC[AES256_GCM,data:UdM/VmdfqhYm1aFCHaO0mbJA/oyV/J2oKVVmGDa0Co3MWq9aWMqP726O+rLk36W0HOG4fmue//R1Q524au2hMW9bZUFzrubfQt2V78tZRZeHCJSRmOmi1D1EDdfPz9J3oWDvIEgIIsAk5H5EuuH0j6FILye6tzcomNGDAKZbwuc=,iv:a7dJAqkcroLp01gkGKV5gm6gTIIMa/9P8qJn44ISrw0=,tag:R9/6X6mgfVSLK7bmoWRnfQ==,type:str] + pgp: [] + unencrypted_suffix: _unencrypted + version: 3.7.1 -- cgit v1.2.3