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Tag: postfix

  • Self-Hosted Email – Part two -Postfix my dix

    I looked through several tutorials on configuring postfix, but none of them really fit my situation, so after maybe a month of going through those with lackluster results, I ended up following the official documentation.

    I started this configuration thinking I’d go for send and receive, but I broke receiving will getting sending to work, so receiving still points to namecheap, which just forwards everything to my spam gmail. I hope to revisit that at a later date.

    To begin with, postfix configuration is stored in /etc/postfix/main.cf. And after giving up receiving, postfix doesn’t really need that much configuration to get working.

    I decided the most logical setup was to have the system only configured to send and receive mail for the local system and domain(basically default install), and the rest of the config is done through the virtual mailbox config.

    ###  vmailbox with postfix accounts
virtual_mailbox_domains = <INTERNET DOMAINS>
virtual_mailbox_base = /var/mail/vhosts
virtual_mailbox_maps = hash:/etc/postfix/vmailbox
virtual_minimum_uid = 100
virtual_uid_maps = static:5000
virtual_gid_maps = static:5000

    mailbox_domains tells the system which virtual domains to use,

    mailbox_base is on the local filesystem, and is the parent of all mailboxes.

    mailbox_maps goes to a hash of the file /etc/postfix/vmailbox, and it contains the email address-to-mailfile mappings(realtive to base), and must be hashed by the postmap command after changes are made.

    the rest you can figure out.

  • Self-Hosted Email – Part one

    Self-Hosted Email – Part one

    the saga of how gmail reluctantly accepted zabbix alerts from my self hosted postfix server

    Currently my email setup is quite simple. I have three domain names, and have them all set to forward incoming email to my spam Gmail account. Then I use rules on the to: field to label them as they come in. It works quite well for pretty much every thing I need, with the exception of sending emails. And sending isn’t really a need, but it would make a lot of things easier. Anything from critical alerts to posting on this very WordPress site could be automated if I could send out email, and actually have it delivered. That is much more difficult than receiving. MS and google have pretty much made it so you can’t use your own email server and get it delivered to the inbox, maybe spam if you do everything right. I started this post a month or two ago. I’m not sure when exactly, but the last time I created the VM qcow was March 28.

    I’m now writing the actual posts, which should be two, possibly three posts, so that I can refer to them later with ease. Postfix and OpenDKIM. Possibly one to tie them all together. Might be simpler to have it in one, but this is where I’m starting from my pages of notes and poorly labeled screenshots.