A simple IMAP server which serves up email from local files, for testing.
Requires golang to compile and install:
$ go install github.com/bcampbell/tameimap
I can probably put up a binary release if anyone really needs it - get in contact.
Usage: ./tameimap [OPTIONS]
A simple IMAP server.
Options:
-d string
dump all network traffic to file ("-" = stdout)
-p int
port number (default 1143)
-v output extra info to stderr
There's currently a hardcoded user 'bob' built in (password: "pass"), with ./bob as it's root directory.
Set up a test directory, eg:
bob
└── INBOX
└── hello.eml
Where hello.eml is an email in RFC822 format, something like:
Date: Tue, 25 Jan 2020 23:11:08 +0000
Message-ID: <1642365537868884386>
Subject: Welcome to tameimap
From: bob@localhost
To: bob@localhost
Here's a placeholder message just to show there's something here.
Run the server (dumping net traffic to stdout):
$ tameimap -d -
Then connect an IMAP client.
As a quick test, using netcat from another terminal:
$ echo -n -e "a LOGIN bob pass\r\nb SELECT INBOX\r\nc LOGOUT\r\n" | nc localhost 1143
You should see something like:
* OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR CHILDREN UNSELECT MOVE APPENDLIMIT AUTH=PLAIN] IMAP4rev1 Service Ready
a LOGIN bob pass
b SELECT INBOX
c LOGOUT
a OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR CHILDREN UNSELECT MOVE APPENDLIMIT] LOGIN completed
* OK [PERMANENTFLAGS (\Answered \Flagged \Deleted \Seen \Draft \*)] Flags permitted.
* OK [UNSEEN 1] Message 1 is first unseen
* 0 RECENT
* OK [UIDNEXT 2] Predicted next UID
* OK [UIDVALIDITY 1] UIDs valid
* 1 EXISTS
b OK [READ-WRITE] SELECT completed
* BYE Closing connection
c OK LOGOUT completed