[{"_1":2,"_153":-5,"_154":-5},"loaderData",{"_3":4,"_13":14,"_21":22,"_132":133},"root",{"_5":-5,"_6":-7,"_7":8,"_9":-7,"_10":11,"_12":-7},"currentUser","primaryEmail","siteVerification","6LeIxAcTAAAAAJcZVRqyHh71UMIEGNQ_MXjiZKhI","toast","enableDev",false,"incidentStatus","routes/_layout",{"_15":-5,"_16":17,"_18":17,"_19":11,"_20":11},"username","isAskGordonEnabled",true,"isUsingNewTemplate","showMinimalLanding","showHoneypotTrap","routes/_layout.r.$namespace.$reponame",{"_23":24,"_25":-5,"_26":11,"_27":11,"_28":29,"_30":31,"_32":-5,"_33":11,"_34":35,"_84":-5,"_85":86,"_125":-5,"_126":11,"_127":17,"_128":11,"_129":-5,"_130":131},"canonicalUrl","https://hub.docker.com/r/kandev/postfix/tags","mcpServer","canSeeDockerfile","canSeeAutobuilds","namespace","kandev","reponame","postfix","cloudBuildSource","isAutobuildsAvailable","repo",{"_36":37,"_38":39,"_41":42,"_43":44,"_45":11,"_46":47,"_48":49,"_50":51,"_53":31,"_28":29,"_54":55,"_56":40,"_57":58,"_59":60,"_61":62,"_63":-5,"_64":58,"_65":66,"_67":11,"_68":29,"_69":70,"_75":11,"_76":77,"_81":29,"_82":83},"categories",[],"content_types",[40],"image","date_registered","2020-04-21T05:06:19.571965Z","description","Simple and clean mail server based on postfix (DKIM, TLS, SMTP, IMAP).","is_private","last_updated","2020-09-17T05:49:20.60713Z","last_modified","2024-10-16T13:48:34.145251Z","media_types",[52],"application/vnd.docker.container.image.v1+json","name","pull_count",373,"repository_type","star_count",0,"status",1,"status_description","active","source","collaborator_count","full_description","# Simple and clean mail server in docker container #\nAssuming you have basic knowledge of *Docker Containers* and what they do. If not - please, go watch some online video presentation about that. Basically it's almost virtual machine, but not so bloated and resource hungry.\n\n## Main features ##\n\n* OpenDKIM signing\n* IMAP with STARTTLS encryption\n* SMTP with STARTTLS encryption\n* Letsencrypt SSL certificate with autorenew\n* Blacklists and SPF checks for spam filtering\n\n## Installation ##\n### Build from source ###\n```\ngit clone https://github.com/kandev/postfix\ncd postfix\ndocker-compose build\ndocker-compose up -d\n```\nConnecting to container:\n```\ndocker exec -ti mail1 bash\n```\n### Get the latest image from Docker Hub ###\n```\ndocker create -h mail1 --name mail1 --network dmz --ip 172.20.0.3 -v mail1_config:/var/config -v /volumes/mail1/domains:/var/mail/domains:rw -v /volumes/mail1/letsencrypt:/etc/letsencrypt:rw -v /etc/localtime:/etc/localtime:ro kandev/postfix:latest\ndocker start mail1\n```\n## DKIM Keys ##\nDKIM key is automatically generated on image creation. Both private and publik keys are stored at **/var/config** directory.\nPlease use the content of **dkim_public.key** to create TXT records in all required DNS zones.\n```\ndefault._domainkey 14400 IN TXT \"v=DKIM1; k=rsa; p=MIGfMA0GCSqGS.....QAB\"\n```\nIf you want to create new key. Please use the following commands.\n```\nopenssl genrsa -out /var/config/dkim_private.key 1024\nopenssl rsa -in /var/config/dkim_private.key -pubout | sed '1d;$d' | tr -d '\\n' > /var/config/dkim_public.key\n```\n## Domains ##\nAll accepted domains are filled in **/var/config/postfix/mailbox_domains**.\n```\nexample.com\nexample.net\nexample.org\n```\n\n## Creating user accounts ##\n### Mailbox map ###\nAll mailboxes should be listed in **/var/config/mailbox_maps**, using the following format:\n```\nivan@example.com example.com/ivan/\npetar@example.org example.org/petar/\n```\nDon't forget to run **postmap mailbox_maps** after update.\n\nSpecifyng SMTP address and mailbox directory where all the messages will be stored.\n\n### User credentials ###\nAccess credentials are stored in **/var/config/users**\n```\nivan@example.com:{CRAM-MD5}b1a3aca8da01c45eb94aa9e64d317d36785e7056b42t67e0ac1d6925ca1b11d7\n```\nPassword is generated using **doveadm pw**.\n\n## Address aliases ##\nAliases are created in **alias_maps**.\n```\nadmin@example.com ivan@example.com\nsupport@example.com ivan@example.com\n```\nDon't forget to run **postmap alias_maps** after update.\n\n## Access control: blacklist, whitelist, archive ##\nAddresses are listed in **sender_access** file.\nYou should whitelist all backup mail servers, otherwise SPF will block all emails from them!\n```\npromocia.info REJECT You suck but yo mama sweet\n1.2.3.4 REJECT\n4.3.2.1 OK\nkiro@example.com BCC gosho@corp.com\n```\nYou can use full email addresses, domains, ip addresses of mail servers. Full list of actions can be seen [here](http://www.postfix.org/access.5.html).\nAnd of course - dont forget **postmap sender_access** after each update.\n\n## Internal spoofing protection ##\nThis means locking all authenticated users to send emails only as their own address.\nPermissions to another address can be given in **login_maps.pcre**.\n```\n/noreply@example.com/ forum@example.com\n/^(.*)$/ ${1}\n```\nThis example allows authenticated user *forum@example.com* to send emails as *noreply@example.com*.\n\n## SSL Certificate ##\nInitial creation of the certificate is manual.\n```\ncertbot certonly --agree-tos -n --standalone -d mail.example.com\n```\nDaily cron job is running to automatically renew any expiring certificates.\n\n## Mail client configuration ##\nTo enable autodiscovery of server configuration parameters, create file named **config-v1.1.xml** with the following example content:\n```\n\n\n\n \n example.com\n Example Corp Ltd.\n Example\n \n mail.example.com\n 143\n STARTTLS\n password-cleartext\n %EMAILADDRESS%\n \n \n mail.example.com\n 25\n STARTTLS\n password-cleartext\n %EMAILADDRESS%\n \n \n\n```\nUpdate your server name and domain, then upload this file to your web server where **example.com** web site is hosted, in the following path - **/.well-known/autoconfig/mail/**.\n\nIf for some reason the client application which you use can't find your server details, you should fill them manually.\n* SMTP port 25, STARTTLS, plain text password\n* IMAP port 143, STARTTLS, plain text password\n* Supposedly you have already created DNS A record for the mail server itself - **mail.example.com**\n* Don't worry about the *plain text*, the connection is secured by TLS.\n\n## Tips ##\nHere are some additional spices, which will make your mail service taste better :)\n* Create SPF record in your DNS zone - https://www.spfwizard.net/\n* Create DMARC record in your DNS zone - https://dmarcian.com/dmarc-record-wizard/\n* Mail server automatic detection best practices - https://dmarcian.com/dmarc-record-wizard/\n* Mail server diagnostics - https://mxtoolbox.com/diagnostic.aspx\n","has_starred","hub_user","immutable_tags_settings",{"_71":11,"_72":73},"enabled","rules",[74],".*","is_automated","permissions",{"_78":17,"_79":11,"_80":11},"read","write","admin","user","storage_size",546473302,"orgData","recentTags",[87],{"_88":40,"_89":90,"_91":92,"_93":94,"_95":96,"_46":114,"_115":90,"_116":29,"_117":52,"_53":118,"_119":120,"_121":105,"_122":114,"_123":62,"_124":17},"content_type","creator",9867972,"full_size",114196038,"id",96443523,"images",[97],{"_98":99,"_100":101,"_102":103,"_104":105,"_106":107,"_108":109,"_110":103,"_111":-5,"_112":92,"_59":62,"_113":-5},"architecture","amd64","digest","sha256:48cc04e999fa2c423cd52799b0b9c20e31463ce48e0ea42d6289b8847e8801e9","features","","last_pulled","2026-08-30T20:52:28.765247511Z","last_pushed","2020-09-17T05:49:21Z","os","linux","os_features","os_version","size","variant","2020-09-17T05:49:20.152205Z","last_updater","last_updater_username","media_type","latest","repository",8877968,"tag_last_pulled","tag_last_pushed","tag_status","v2","sbxKitMetadata","isPotentialSpam","isHubSbxKitsEnabled","displaySecurityMetadata","tagAttestations","tagsHaveAttestations",[],"routes/_layout.r.$namespace.$reponame.tags",{"_34":134,"_141":142,"_130":151,"_152":11},{"_36":135,"_38":136,"_41":42,"_43":44,"_45":11,"_46":47,"_48":49,"_50":137,"_53":31,"_28":29,"_54":55,"_56":40,"_57":58,"_59":60,"_61":62,"_63":-5,"_64":58,"_65":66,"_67":11,"_68":29,"_69":138,"_75":11,"_76":140,"_81":29,"_82":83},[],[40],[52],{"_71":11,"_72":139},[74],{"_78":17,"_79":11,"_80":11},"tags",{"_143":60,"_144":-5,"_145":-5,"_146":147},"count","next","previous","results",[148],{"_88":40,"_89":90,"_91":92,"_93":94,"_95":149,"_46":114,"_115":90,"_116":29,"_117":52,"_53":118,"_119":120,"_121":105,"_122":114,"_123":62,"_124":17},[150],{"_98":99,"_100":101,"_102":103,"_104":105,"_106":107,"_108":109,"_110":103,"_111":-5,"_112":92,"_59":62,"_113":-5},[],"canDeleteTags","actionData","errors"]

kandev/postfix

Tags for kandev/postfix