mess882x – RFC 822 Message parser and (s/)qmail helpers

WHAT IT IS:

• mess822x is a fork of D.J.B.'s mess822-0.58 package,
• ported to fehQlibs(-16) and
• provided in the /slashpackage format accordingly.

WHAT IT INCLUDES:

• 822* and mess822 routines for RFC 2822 mail message handling covering the header and the body of the message
• tai* libraries for TAI time handling and formating, including reading, conversion between localtime and timezones.
• (s/)qmail add-ons handler and programs to be used in a dot-qmail file

mess822* AND 822* ROUTINES:

• 822body - display the body of a RFC 822 message
• 822date - read the date and time from a message
• 822field - read (and display) arbitrary fields in here
• 822header - print the header of the message
• 822mimeparts - disentangle MIME parts of a message
• 822print - read, re-structure, and dispay the message header
• 822received - show the 'Received' header fields
• b64decode/b64encode - generic BASE64 encoding + decoding
• qpdecode/qpencode - Quoted-printable encoding and decoding

RFC 2047 and RFC 4648 are respected.

(s/)qmail's ADD-ONS:

• ifvalidto - check if SMTP recipient is listed in To:/CC:; optionally bounce or redirect the mail
• iftocc - check if SMTP recipient is potentially in BCC:; optionally bounce the message
• new-inject - preprocess a message, including address rewriting and change of envelope sender
• ofmipd - accept outgoing mail through OFMIP, the Old-Fashioned Mail Injection Protocol
• ofmipname - build a name-address database (cdb)

LIBRARIES:

After compilation the following two libraries are available:

• libtai.a: time&date functions
• mess822.a: mail message parsing functions including base64 and quoted-printable primitives

REQUIREMENTS:

• fehQlibs (>=25) – can't build w/o it

INSTALLATION:

• Read the doc/INSTALL document

DOCUMENTATION:

• Check the ./doc directory
• See doc/CHANGES for version information.

LEAPSECS.DAT:

• An updated leapsecs.dat file will be installed under /etc.

mess822x (1.x) – this README is not comprehensive yet

Date: December, 11th, 2024