Question: What was the email system released by the owners of the Perkins Estate in the 1980s called?

Context paragraphs:
Corrlinks: Corrlinks is a privately owned company that operates the Trust Fund Limited Inmate Computer System (TRULINCS), the email system used by the United State Federal Bureau of Prisons to allow inmates to communicate with the outside world.  TRULINCS is a fee-based system that inmates must pay for in order to send or receive email.  Unlike commercial sites which allow correspondents to send an email which is then printed and mailed to an inmate, this service provides direct email access to federal inmates.  Inmates must pay $0.05 per minute for use of this system, and are permitted to print messages at a cost of $0.15 per page.  (In many U.S. federal prisons inmates wages start at 12 cents per hour.)  Sending a message to someone can cost up to $0.30.  This service is also available in some state prisons such as Iowa.

Lotus Software: Lotus Software (called Lotus Development Corporation before its acquisition by IBM) was an American software company based in Massachusetts.  Lotus is most commonly known for the Lotus 1-2-3 spreadsheet application, the first feature-heavy, user-friendly, reliable and WYSIWYG-enabled product to become widely available in the early days of the IBM PC, when there was no graphical user interface.  Much later, in conjunction with Ray Ozzie's Iris Associates, Lotus also released a groupware and email system, Lotus Notes.  IBM purchased the company in 1995 for US$3.5 billion, primarily to acquire Lotus Notes and to establish a presence in the increasingly important client–server computing segment, which was rapidly making host-based products such as IBM's OfficeVision obsolete.

Consumers Software: Consumers Software was a computer networking company based in Canada.  The company created early spreadsheet utilities and later developed Network Courier, an email product based on the concept of one or more connected 'post offices'.  The post office could be connected to legacy email systems, such as PROFS, DEC and other largely mainframe based email system using connectors.

Loan modification in the United States: Loan modification is the systematic alteration of mortgage loan agreements that help those having problems making the payments by reducing interest rates, monthly payments or principal balances.  Lending institutions could make one or more of these changes to relieve financial pressure on borrowers to prevent the condition of foreclosure.  Loan modifications have been practiced in the United States since The 2008 Crash Of The Housing Market from Washington Mutual, Chase Home Finance, Chase, JP Morgan & Chase, other contributors like MER's.  Crimes of Mortgage ad Real Estate Staff had long assisted nd finally the squeaky will could not continue as their deviant practices broke the state and crashed.  Modification owners either ordered by The United States Department of Housing, The United States IRS or President Obamas letters from Note Holders came to those various departments asking for the Democratic process to help them keep their homes and protection them from explosion.  Thus the birth of Modifications.  It is yet to date for clarity how theses enforcements came into existence and except b whom, but t is certain that note holders form the Midwest reached out in the Democratic Process for assistance.  FBI Mortgage Fraud Department came into existence.  Modifications HMAP HARP were also birthed to help note holders get Justice through reduced mortgage by making terms legal.  Modification of mortgage terms was introduced by IRS staff addressing the crisis called the HAMP TEAMS that went across the United States desiring the new products to assist homeowners that were victims of predatory lending practices, unethical staff, brokers, attorneys and lenders that contributed to the crash.  Modification were a fix to the crash as litigation has ensued as the lenders reorganized and renamed the lending institutions and government agencies are to closely monitor them.  Prior to modifications loan holders that experiences crisis would use Loan assumptions and Loan transfers to keep the note in the 1930s.  During the Great Depression, loan transfers, loan assumption, and loan bail out programs took place at the state level in an effort to reduce levels of loan foreclosures while the Federal Bureau of Investigation, Federal Trade Commission, Comptroller, the United States Government and State Government responded to lending institution violations of law in these arenas by setting public court records that are legal precedence of such illegal actions.  The legal precedents and reporting agencies were created to address the violations of laws to consumers while the Modifications were created to assist the consumers that are victims of predatory lending practices.  During the so-called "Great Recession" of the early 21st century, loan modification became a matter of national policy, with various actions taken to alter mortgage loan terms to prevent further economic destabilization.  Due to absorbent personal profits nothing has been done to educate Homeowners or Creditors that this money from equity, escrow is truly theirs the Loan Note Holder and it is their monetary rights as the real prize and reason for the Housing Crash was the profit n obtaining the mortgage holders Escrow.  The Escrow and Equity that is accursed form the Note Holders payments various staff through the United States claimed as recorded and cashed by all staff in real-estate from local residential Tax Assessing Staff, Real Estate Staff, Ordinance Staff, Police Staff, Brokers, attorneys, lending institutional staff but typically Attorneys who are also typically the owners or Rental properties that are trained through Bankruptcies'.  that collect the Escrow that is rightfully the Homeowners but because most Homeowners are unaware of what money is due them and how they can loose their escrow.  Most Creditors are unaware that as the note holder that the Note Holder are due a annual or semi annual equity check and again bank or other lending and or legal intuitions staff claim this monies instead.  This money Note Holders were unaware of is the prize of real estate and the cause of the Real Estate Crash of 2008 where Lending Institutions provided mortgages to people years prior they know they would eventually loose with Loan holders purchasing Balloon Mortgages lending product that is designed to make fast money off the note holder whom is always typically unaware of their escrow, equity and that are further victimized by conferences and books on HOW TO MAKE MONEY IN REAL STATE - when in fact the money is the Note Holder.  The key of the crash was not the House, but the loan product used and the interest and money that was accrued form the note holders that staff too immorally.  The immoral and illegal actions of predatory lending station and their staff began with the inception of balloon mortgages although illegal activity has always existed in the arena, yet the crash created "Watch Dog" like HAMP TEAM, IRS, COMPTROLLER< Federal Trade Commission Consumer Protection Bureau, FBI, CIA, Local Police Department, ICE ( The FBI online Computer crime division receives and investigates computer crimes that record keeping staff from title companies, lending institutional staff, legal staff and others created fraudulent documents to change payments and billing of note holders to obtain the money note holders are typically unaware of) and other watch dog agencies came into existence to examine if houses were purchased through a processed check at Government Debited office as many obtained free homes illegally.  Many were incarcerated for such illegal actions.  Modifications fixed the Notes to proper lower interest, escrow, tax fees that staff typically raised for no reason.  Many people from various arenas involved in reals estate have been incarcerated for these actions as well as other illegal actions like charging for a modification.  Additionally Modifications were also made to address the falsifications such as inappropriate mortgage charges, filing of fraudulently deeds, reporting of and at times filing of fraudulent mortgages that were already paid off that were fraudulently continued by lenders staff and attorneys or brokers or anyone in the Real Estate Chain through the issues of real estate terms to continue to violate United States Laws, contract law and legal precedence where collusion was often done again to defraud and steal from the Note Holder was such a common practice that was evidence as to why the Mortgage Crash in 2008 occurred for the purpose of wining the prize of stealing form Homeowners and those that foreclosed was actually often purposefully for these monies note holders were unaware of to be obtained which was why Balloon mortgages and loans were given to the staff in the Real Estate Market with the hoper and the expectation that the loan holders would default as it offered opportunity to commit illegal transactions of obtaining the homeowners funds.  While such scams were addressed through modifications in 2008.  The Market relied heavily on Consumers ignorance to prosper, ignorance of real estate terms, ignorance on what they were to be charged properly for unethical financial gain and while staff in real estates lending arenas mingled terms to deceive y deliberate confusion consumers out of cash and homes while the USA Government provided Justice through President Obamas Inception and IRS Inception of Modifications which addressed these unethical profits in Reals Estate.  It was in 2009 that HARP, HAMP and Modifications were introduced to stop the victimization of Note Holders.  Taking on the Banks that ran USA Government was a great and dangerous undertaking that made America Great Again as Justice for Consumers reigned.  Legal action taken against institutions that have such business practices can be viewed in State Code of Law and Federal Law on precedent cases that are available to the public.  Finally, It had been unlawful to be charged by an attorney to modify as well as fro banking staff to modify terms to increase a mortgage and or change lending product to a balloon in an concerted effort to make homeowner foreclose which is also illegal, computer fraud and not the governments intended purpose or definition of a modification.

Push email: Push email is an email system that provides an always-on capability, in which new email is actively transferred (pushed) as it arrives by the mail delivery agent (MDA) (commonly called mail server) to the mail user agent (MUA), also called the email client.  Email clients include smartphones and, less strictly, IMAP personal computer mail applications.

Perkins Estate: The Perkins Estate is a historic estate at 450 Warren Street in Brookline, Massachusetts.  The property was part of the summer estate of the Cabot family, originally belonging to Thomas Handasyd Perkins; the present main mansion house was built in the 1850s to a plan by Edward C. Cabot for his sister-in-law, Elizabeth Perkins Cabot.  The grounds of the property were originally designed by Perkins, and subsequent generations maintained the grounds to a high degree.  In the 1980s it was owned by Mitch Kapor, founder of Lotus Software.

Digital marketing engineer: A digital marketing engineer is a member of a marketing team who applies web technology and digital marketing platforms (such as a website, email system, CMS, CRM, or other software application) for the purpose of achieving marketing business goals.  It is a hybrid role involving both marketing and technology knowledge.  The need for digital marketing engineers arose as a result of marketing becoming reliant on increasingly sophisticated digital technologies.

Cc:Mail: cc:Mail was a store-and-forward LAN-based email system originally developed on Microsoft's MS-DOS platform by Concentric Systems, Inc. in the 1980s.  The company, founded by Robert Plummer, Hubert Lipinski, and Michael Palmer, later changed its name to PCC Systems, Inc., and then to cc:Mail, Inc.  At the height of its popularity, cc:Mail had about 14 million users, and won various awards for being the top email software package of the mid-1990s.

Wietse Venema: Wietse Zweitze Venema (born 1951) is a Dutch programmer and physicist best known for writing the Postfix email system.  He also wrote TCP Wrapper and collaborated with Dan Farmer to produce the computer security tools SATAN and The Coroner's Toolkit.

I. P. Sharp Associates: I. P. Sharp Associates, IPSA for short, was a major Canadian computer time sharing, consulting and services firm of the 1970s and 80s.  IPSA is particularly well known for its work on the APL programming language, an early packet switching computer network known as IPSANET, and a powerful mainframe-based email system known as 666 BOX.  It was purchased in 1987 by Reuters, which used them until 2005 as a data warehousing center for business data.

Supporting paragraphs: Perkins Estate Lotus Software
Answer: Lotus Notes