Extroduction 

Opposite of introduction. A way of leading out of a topic.
A short form is extro

It can also be used as a verb, in the opposite manner of the word introduce.

John read the extroduction of his favorite book.

Let me extroduce Mr. T, the man who needs no introduction.

Extroduction by Dr. Fred Manly January 20, 2009

etroduction

Introduction to someone via an online medium such as email, instant message or forum post. These sorts of introductions are often less personal but socially acceptable in more technology friendly circles such as online gaming, web services or eMarketing.

The etroduction of Robert to Anthony was well-received even though it could not involve a formal handshake.

etroduction by Aeohn August 24, 2012

Etroduction

Making an introduction online, via email, chat, or messenger.

John,

I would like to make an etroduction to a great friend of mine looking for work.

John,

I would like to make an etroduction to a great friend of mine looking for a girlfriend.

Etroduction by Jammin John July 2, 2009

Etroduction

Electronic introduction. When you send an email or electronic message to introduce people to eachother.

I will send an etroduction so you two can discuss the project.

Etroduction by Krystalized4U January 31, 2018

Textroduction 

Introduction done through text messaging platform.

Please let this serve as a textroduction between John Doe and Jane Doe.

Textroduction by virginiacannabislawyers March 17, 2022