wget https://archive.mozilla.org/pub/seamonkey/releases/2.53.9/linux-x86_64/en-US/seamonkey-2.53.9.en-US.linux-x86_64.tar.bz2
tar -jvxf seamonkey-2.53.9.en-US.linux-x86_64.tar.bz2
cd seamonkey/
./seamonkey

Now you've got a working version of Seamonkey.

sudo ln -sf /home/[USER_NAME_GOES_HERE]/seamonkey/seamonkey /usr/local/bin/seamonkey

Now you've got Seamonkey on your PATH systemwide.
Make a .desktop file

sudo mousepad /usr/share/applications/seamonkey.desktop

Insert this text:

[Desktop Entry]
Version=1.0
Name=Seamonkey Web Browser
GenericName=Web Browser
Comment=Access the Internet
Exec=/usr/local/bin/seamonkey %U
StartupNotify=true
Terminal=false
Icon=/home/[USER_NAME_GOES_HERE]/seamonkey/chrome/icons/default/default32.png
Type=Application
Categories=Network;WebBrowser;
MimeType=application/pdf;application/rdf+xml;application/rss+xml;application/xhtml+xml;application/xhtml_xml;application/xml;image/gif;image/jpeg;image/png;image/webp;text/html;text/xml;x-scheme-handler/http;x-scheme-handler/https;x-scheme-handler/ipfs;x-scheme-handler/ipns;

Save and quit. Now you can put Seamonkey in your menus.
Easy.

cat <<EOF | sudo tee /etc/apt/sources.list.d/mozilla.list
deb http://downloads.sourceforge.net/projec … ozilla/apt all main
EOF

Leave that poor cat alone!

sudo tee /etc/apt/sources.list.d/mozilla.list <<!
deb http://downloads.sourceforge.net/project/ubuntuzilla/mozilla/apt all main
!

And are you sure the UbuntuZilla repository is compatible with Devuan? Most PPAs aren't.

You need to execute the following commands to add repository, its key and package installation:

cat <<EOF | sudo tee /etc/apt/sources.list.d/mozilla.list
deb http://downloads.sourceforge.net/projec … ozilla/apt all main
EOF

sudo apt-key adv --recv-keys --keyserver keyserver.ubuntu.com 2667CA5C
sudo apt-get update
sudo apt-get install seamonkey-mozilla-build

Thunderbird does not suck less, but if you beat it hard enough with a tire iron, you can get it to send and receive a few emails for you. All other email programs besides Thunderbird are so horrendously bad that they will reduce your life expectancy by at least 10 years. Thunderbird will only reduce your life expectancy by 7 years. So it has that going for it.

Everyone? 
Nope, probably just me. 8^)

In my previous life as a MS OS user (DOS5.5 / W3.11 -> XPSP3), after a short run with the free version of Eudora, I switched to Pegasus Mail in early 1996.

Many years later, being able to use Pegasus Mail under Linux (via Wine) was one of the two deal-breaking programmes that made it possible to make a seamless switch to Linux and leave the MS OS environment for good, the other was Judd Montgomery's JPilot.

Once comfortably settled within Linux, I tried out most if not all the available options but none were good enough, Claws-Mail coming close.
But it simply did not have the same functionality I have come to appreciate in David Harris' free albeit not open source programme.

This year marks the 25th. I have been using Pegasus Mail and can only say it is quite solid and reliable, has never let me down.

Just my $0.02.

Best,

A.

I also installed Evolution and Thunderbird when I was checking for the one I liked the best and still have them available.

Geoff

it had a nonsense error where it said a library that did exist did not exist.

Quoting the full text of the error message would be likely to get you a better response.

it had a nonsense error where it said a library that did exist did not exist.

It may not be as silly as it sounds; they are usually different versions, names o links of what seems the same library. Have you tried ldd yourbinary?

Thank you for the reply.. One vote for Thunderbird, then.

PS: I guess to actually answer your question... I use Thunderbird v3.1.20, but that story is much more complicated than just downloading SeaMonkey. :-)

Thank you.