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J-VS-S.TXT
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1994-01-14
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Differences between the Shelter Mailers and JamMail.
TODO:
JamMail's TODO list reads like a Shelter Feature list (in fact like
a ROOF feature list from two years ago:)
(Couldn't resist this :)
Resume:
Shelter supports RESUME on both inbound and outbound sessions.
Jamail does not support RESUME on files received.
Timing:
Shelter is developed on a 68000 based A2000, so considerations of
speed and timing is taken into account during development.
JamMail is developed on a 68030-based system and such problems can
occur with 68000 users.
Windows:
Both use multiple windows. However, Shelter Mailers also feature
Status Display, called a GUI (a misnomer).
Shelter mailers allow the user to selectively disable any window,
except the GUI. This includes the xpr transfer window.
Jamail does not.
Modems:
Shelter Development uses low-cost modems such as the v42bis
LineLink 144e and the Supra 2400zi. This SHOULD insure that modem
handling works with a majority of modems.
JamMail Development uses expensive modems such as Zyxel and Hayes
V.FC. Some users who have switched from JamMail to Shelter, did so
because of modem handling problems in JamMail. Certain features
will not work at all, since they are based upon the configurabilety
of the expensive modems. (Low cost modems may have the features,
but are not as configurable).
Modules:
Shelter uses accessable text files for configuration, but takes
some time to generate the mailer.
JamMail is slow to configure since it uses a GUI. It
generates the mailer very quickly.
Shelter uses multiple modules (depending upon mailer). This
allows reconfiguration of certain aspects (AKA, SiteCache, Menus) of
the system without regenerating the whole mailer.
Jammail uses a single .wpl module for fast loading. One must
regenerated the whole mailer for any change.
Shelter includes some additional code that may be possibly used
if parts of the mailer are re-generated.
Jammail claims to include only code that is used.
SHELTER design primary consideration is POWER. There is NO mailer
on ANY platform like it.
Jammail design primary consideration is SPEED, but not all steps
are taken to insure this, since it is developed on a 68030.
Shelter mailer generator is source released, allowing users who
wish to learmn wpl to modify it to thier needs.
Jammail is not.
PREDIAL commands:
jammail - none
Sheleter mailers feature site-specific predial commands
PRESESSION commands:
jammail - requires JamTool/JamPbook
Shelter mailers feature site-specific presession commands,
(primary intended for packet switching networks)
WHENRECD commands:
Other than request handlers, Jammail does not provide for a command
to execute upon RECEPTION of a file.
In addition to request handlers, Shelter provides WHENRECD commands
for email, PKT, Arcmail and TICs.
AFTERSESSION commands:
Jammail only allows one command to be executed after a session is
completed.
Shelter provides for aftersession commands for uucp mail, PKT,
Arcmail, Tic, or file that was received in response to a sent REQ,
and any processing one may wish to do after a terminal session.
Shelter also provides aftersession commands configurable on a
per-site basis.
ACCESS CONTROL:
Jammail has a single variable (ZMH) to control access the all
features.
Shelter Mailers have seperate variables to control access to freqs,
bbs, utilities etc.
HANDSHAKE:
Shelter allows selection of handshake (FTS1,WAZOO,EMSI) on a
per-site basis.
JamMail does not.
WaZOO AutoAKA:
Jammail does 4D AUTOAKA for inbound calls, 5D for outbound.
Shelter does 5D AUTOAKA for both inbound and outbound calls.
WaZOO UseAKAS:
Shelter can be configured to send all FTN mail for all AKAs
configured for a site REGARDLESS of wether EMSI or WAZOO used.
Jammail will only do this under EMSI.
EMSI:
Jammail requires JamTool and JamPhone in order to do EMSI.
Shelter does not require additional utilities.
EMSI control:
Shelter processes virtually every EMSI link and compatibility
flag related to pickup and holding of mail and files.
JamMail does not process ANY except for HRQ and NRQ (as of last
version I've seen ,940310 version)
Shelter properly sets all link and capability flags.
JamMail improperly sets NRQ capbility flag (indicated NO file
request server) when requests are disabled for ZMH.
Shelter allows limiting host addresses presented on a per-site
basis.
JamMail does not.
(EMSI_LINKS.DOC, included in the mailer archives, fully describes
the Shelter EMSI implementation)
Sites:
Both handle FTN, BBS/OnLineServices/FTP, UUCP and Fax sites.
Shelter also provides predial, presession and aftersession commands
configurable on a per-site basis.
Polling:
Shelter has configurable redial and busy delays as well as redial
window. Shelter Redial delay is changeable on the fly.
The Shelter dial command use standard amigados argument templates
and provides options such as send crash mail only and nopickup
which Jammail does not.
Jammail provides facilties for redialing, but nothing is
configurable. Polling is automatic and outside the control of the
user.
Human Callers:
Shelter's human caller support is extensive, with multiple menus,
multiple BBSs, DOORS, magic downloads, online help, info files,
access to request handler, bulletins, feedback to/from sysop, chat,
user accounts, call back verification.
It is also SECURE.
Jammail's human caller support is limited to magic names, file
request server and a single bbs.
Source:
Shelter is SOURCE-RELEASED FREEWARE, including all third party
utilites..(this does not include libraries or os commands :)
Source code and design ideas from the ROOF and Shelter Mailers has
been publically posted and deriviations may be found in other wpl
mailers, including JamMail.
JamMail is neither source released, nor freeware.
Support:
Jammail includes only features for which the author decides are
useful.
Shelter is constantly having features added that were
requested by users, even if is not possible for the author
to test them himself. (The feature requester tests)
Ego:
The author of the Shelter Mailers did not find it necessary to use
part of his name in every program.
James McOrmond's JamMail, Jamtool, Jamscan, JamPhone, ..well..that
speaks for itself. :)
Gotcha's:
Other than certain third-party binaries (specifically, wplemsi.library),
there are no hidden defaults in Shelter and all are source released.
Much like TrapDoor, JamMail requires the use of other utilties.