I have to install a new mail setup on our office server to replace an old QMAIL + dovecot setup (currently working and in use every day). I created a FreeBSD virtual machine on another office computer so I can get all of my configuration correct before I do it on the real server.
I created a subdomain (for this post I'll call it sub2.mydomain.com) and set up the DNS for it. After the install I can connect over SSL from the generic mail app on my Android phone and SEND a message through my new SMTP server and it arrives in my Gmail INBOX!!
However, when I reply from Gmail, I never get the message in my forms@sub2.mydomain.com mailbox. I also tried sending a message locally from forms@sub2.mydomain.com to itself. Nope. It never arrives.
I feel like I'm overlooking something simple but I've been making dozens of changes over the past couple of days and I either make it worse, or I'm back to being able to send but not receive.
I'm hoping one of you can spot what I've done wrong. One of the problems I had when looking at documentation was- many of the guides were written for OpenBSD and I don't really know the differences between FreeBSD and OpenBSD. Some of the paths are different because there were paths that don't exist on my machine. I mainly used this guide: https://prefetch.eu/blog/2020/email-server/ but I didn't do everything he said. I also looked at the official docs and fixed mailer.conf and a few other things he doesn't mention (because OpenBSD is different? Idk)
Here are the basics. Let me know what else you need. Thanks!!
smtpd.conf
dovecot.conf
I created a subdomain (for this post I'll call it sub2.mydomain.com) and set up the DNS for it. After the install I can connect over SSL from the generic mail app on my Android phone and SEND a message through my new SMTP server and it arrives in my Gmail INBOX!!
However, when I reply from Gmail, I never get the message in my forms@sub2.mydomain.com mailbox. I also tried sending a message locally from forms@sub2.mydomain.com to itself. Nope. It never arrives.
I feel like I'm overlooking something simple but I've been making dozens of changes over the past couple of days and I either make it worse, or I'm back to being able to send but not receive.
I'm hoping one of you can spot what I've done wrong. One of the problems I had when looking at documentation was- many of the guides were written for OpenBSD and I don't really know the differences between FreeBSD and OpenBSD. Some of the paths are different because there were paths that don't exist on my machine. I mainly used this guide: https://prefetch.eu/blog/2020/email-server/ but I didn't do everything he said. I also looked at the official docs and fixed mailer.conf and a few other things he doesn't mention (because OpenBSD is different? Idk)
Here are the basics. Let me know what else you need. Thanks!!
Code:
# uname -a
FreeBSD sub2.mydomain.com 12.2-RELEASE-p12 FreeBSD 12.2-RELEASE-p12 GENERIC amd64smtpd.conf
Code:
# sub2.mydomain.com v02.23.2022
# Define two tables stored in plain text files for mail aliases and email/password hashes
table aliases file:/etc/mail/aliases
table passwds file:/etc/mail/passwds
# Set up the certificates
pki sub2.mydomain.com key "/usr/local/etc/letsencrypt/live/sub2.mydomain.com/privkey.pem"
pki sub2.mydomain.com cert "/usr/local/etc/letsencrypt/live/sub2.mydomain.com/fullchain.pem"
srs key "ofzuKRoCHANGEDoFORoPRIVACYoJ88esXig"
filter "rdns" phase connect match !rdns disconnect "550 DNS error"
filter "fcrdns" phase connect match !fcrdns disconnect "550 DNS error"
# Inbound
listen on em0 port 25 tls pki "sub2.mydomain.com" filter { "rdns", "fcrdns" }
action "RECV" lmtp "/usr/local/libexec/dovecot/lmtp" rcpt-to virtual <aliases>
match from any for domain "sub2.mydomain.com" action "RECV"
# Outbound
listen on em0 port 465 smtps pki "sub2.mydomain.com" auth <passwds>
listen on em0 port 587 tls-require pki "sub2.mydomain.com" auth <passwds>
action "SEND" relay srs
match from any auth for any action "SEND"dovecot.conf
Code:
# dovecot conf for sub2.mydomain.com 02.23.2022 v1.0
ssl = required
ssl_cert = </usr/local/etc/letsencrypt/live/sub2.mydomain.com/fullchain.pem
ssl_key = </usr/local/etc/letsencrypt/live/sub2.mydomain.com/privkey.pem
ssl_min_protocol = TLSv1.2
ssl_prefer_server_ciphers = yes
disable_plaintext_auth = yes
protocols = lmtp imap
service lmtp {
unix_listener lmtp {
user = vmail
group = vmail
}
}
service imap-login {
inet_listener imap {
port = 143
}
inet_listener imaps {
port = 993
}
}
passdb {
driver = passwd-file
args = scheme=SHA512-CRYPT username_format=%u /usr/local/etc/dovecot/users
}
userdb {
driver = passwd-file
args = username_format=%u /usr/local/etc/dovecot/users
override_fields = uid=vmail gid=vmail home=/usr/home/vmail/%d/%n
}
mail_location = maildir:~/Maildir
# from conf.d/10-mail.conf
namespace inbox {
inbox = yes
}
# from conf.d/15-mailboxes.conf
namespace inbox {
# These mailboxes are widely used and could perhaps be created automatically:
mailbox Drafts {
special_use = \Drafts
auto = create
}
mailbox Junk {
special_use = \Junk
auto = create
}
mailbox Trash {
special_use = \Trash
auto = create
}
# For \Sent mailboxes there are two widely used names. We'll mark both of
# them as \Sent. User typically deletes one of them if duplicates are created.
mailbox Sent {
special_use = \Sent
auto = create
}
mailbox "Sent Messages" {
special_use = \Sent
}
}