how can i replace "return" (in thunderbird) with gvim?

[Gary Kline]

when possible, i use "mutt" to send my text email. otherwise i use "thunderbird" and then use "konsole" to compose, fix typos, &c, and copy and paste my email into the meesge into "thunderbird. It would be vastly easier to use a utility like "gvim" to type my return messages. ---So, nutshell, can anyone clue me in on how to configure "thunderbird" to use "gvim", or "nvi" or even "vim" to use to instead of the way "thunderbird" works now??

TIA,

gary kline

ProblemType: Package
DistroRelease: Ubuntu 19.10
Package: sendmail-bin 8.15.2-13
ProcVersionSignature: Ubuntu 5.3.0-40.32-generic 5.3.18
Uname: Linux 5.3.0-40-generic x86_64
ApportVersion: 2.20.11-0ubuntu8.3
Architecture: amd64
Date: Fri Feb 7 13:56:38 2020
ErrorMessage: installed sendmail-bin package post-installation script subprocess returned error exit status 2
InstallationDate: Installed on 2019-03-23 (321 days ago)
InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
Python3Details: /usr/bin/python3.7, Python 3.7.5, python3-minimal, 3.7.5-1
PythonDetails: /usr/bin/python2.7, Python 2.7.17, python-minimal, 2.7.17-1
RelatedPackageVersions:
 dpkg 1.19.7ubuntu2
 apt 1.9.4
SourcePackage: sendmail
Title: package sendmail-bin 8.15.2-13 failed to install/upgrade: installed sendmail-bin package post-installation script subprocess returned error exit status 2
UpgradeStatus: No upgrade log present (probably fresh install)

[Chris Guiver (guiverc)]

Thank you for taking the time to report this bug and helping to make Ubuntu better.

Bug reporting is about finding & fixing problems thus preventing future users from hitting the same bug. At best your bug report could be read as a feature request if it doesn't already handle it (support sites can help you with what it does already).

I suspect a Support site would be more appropriate, eg. https://answers.launchpad.net/ubuntu. You can also find help with your problem in the support forum of your local Ubuntu community http://loco.ubuntu.com/ or asking at https://askubuntu.com or https://ubuntuforums.org, or for more support options please look at https://discourse.ubuntu.com/t/community-support/709