3 - SpamAssassin / procmail support
4 - Additional AUTH methods
6 - Verify sender address (domain, corresponding authenticated user)
7 - Temporarily unavailable (Test mode?)
8 - Reason for disconnect
9 - Proper handling of "ReqHELO" and "Unknown command"
10 - Log outgoing SMTP transactions
11 - Show delivery thread IDs
12 - Watchdog for delivery threads
14 - Show authenticated user in "Received" headers
15 - Delivery threads should finish sooner
16 - Ensure random spool object names
23 - Option to disable MX lookups
24 - Separate config files or work directories supplied in parameters
25 + Process CTRL-C properly to quit from user mode gracefully
27 - Bind to user-specified IPs
28 + Option to add Reply-To header to forwarded e-mails
29 + Fix non-RFC-compliant handling of lines starting with dots
30 + Fall back to HELO when remote server doesn't support EHLO
31 - Implement CHUNKING extension
32 - Implement more proper reactions for non-standard replies and sequence breaking
35 + Change "Client disconnected, and thread exited successfully." to "Client disconnected."
36 + Fix "Internal error" bug - this should be a temporary failure
37 + Fix bug regarding simultaneous delivery to forwarded mailboxes
38 + Fix bug in DNSMX.pas: improper handling of MX precedence values larger than 100
39 + Fix bug regarding Policies/Hosts table not being case-insensitive
40 + Fix service mode not working when compiled with FPC 2.6.2!
41 + Alternate mailbox names with + signs (e.g. "megabrutal+games@domain")
42 + Domain-scope mailbox settings
43 + Improved Wine compatibility
44 + Consistent handling of local/relay spool objects
45 + Implement Win64 support
47 + Enforce ASCII printable characters in commands
48 + Developer comment for test/debug builds
49 + More efficient command-line parsing
53 + Show Message-IDs upon receipt
54 + Send one cumulative DSN when multiple recipients fail
56 + Add timestamp correction to "Received" headers
57 + Append "Original-To" header
61 + Reject HEAD and POST requests too
62 + Domain-specific mailboxes (virtual hosting)
63 + Correct incorrect timezone correction
64 + Correct bug in address interpretation
65 + Correct bug in spool iteration
66 + Write thread IDs in spool objects
67 + Append "Return-Path" header
71 + Meaningful status codes (in smtp.log)
72 + Accept mixed-case commands
73 + Correct bug in DNS MX queries
75 + Log SMTP responses on permanent status changes
76 + Don't remember status codes (never needed, only causes confusion)
79 + Disconnect HTTP agents
81 + Accept awkward AUTH LOGIN attempts
83 + Fix memory/handle leak
91 + Hide AUTH feature when no users
92 + Add protection against loops
93 + Ensure case-insensitive relay routes
97 + Fully support SIZE parameter
98 + Better support for 8BITMIME