TechMailEverything It Takes to Run Real Email
TechMail isn't a wrapper around someone else's API - it's a complete, self-hosted mail platform. Here's what's inside.
Add a Domain, Get the Exact Records
TechMail generates everything your domain needs to send and receive authenticated mail, then verifies it against live DNS so you never guess.
- RSA-2048 DKIM keypair generated and stored encrypted
- MX, SPF, DKIM and DMARC records produced for you
- One-click verification over public resolvers
- Clear Pending / Verified / Failed status per record
Unlimited Addresses on Your Domains
Create as many mailboxes as you need. Each is a real account with its own quota, folders and credentials for any mail client.
- Standard folders: Inbox, Sent, Drafts, Trash, Archive, Spam, Starred
- Per-mailbox quota display and usage tracking
- Independent IMAP/POP3 credentials per mailbox
- IMAP-aware from day one (UIDs, flags, UID validity)
DKIM-Signed Delivery That Lands
Every message you send is cryptographically signed with your domain's key and delivered either through a relay or straight to the recipient's MX.
- Automatic DKIM signing via mailauth
- Relay or direct-to-MX delivery
- A copy is saved to Sent automatically
- Built to pass SPF, DKIM and DMARC checks
Authenticated Mail, Stored on Your Disk
TechMail runs its own SMTP server to accept mail for your domains, authenticates it, and stores the raw MIME on infrastructure you control.
- Hand-rolled SMTP server on port 25
- Recipient lookup against your mailboxes
- SPF and DKIM verification on arrival
- Atomic UID assignment for IMAP correctness
A Complete SMTP / IMAP / POP3 Stack
Use the web UI, or connect the mail client you already love. TechMail speaks the standard protocols, with TLS upgrades built in.
- RFC 3501 IMAP on port 143 with STARTTLS
- RFC 1939 POP3 on port 110 with STLS
- Works with Thunderbird, Apple Mail and more
- QUIT-time expunge and proper UID handling
A Fast, Modern Inbox
A clean three-column webmail experience for everyday mail - compose, organize and search without leaving the browser.
- Three-column inbox with folder sidebar
- Compose sheet with a focused writing experience
- Message actions: move, archive, trash, star
- Single-color iconography throughout
Secure by Design
Encrypted keys, hashed passwords, authenticated mail. See exactly how TechMail protects your data on the security page.
See It Running for Yourself
Create an account and add your first domain - the whole flow takes minutes.