4 packages from jsthomas/tidy-email at 0.0.1

[jsthomas]

This pull-request concerns:
-tidy_email.0.0.1: An OCaml library that simplifies connecting to email services
-tidy_email_mailgun.0.0.1: An OCaml library that simplifies connecting to Mailgun's REST API
-tidy_email_sendgrid.0.0.1: An OCaml library that simplifies connecting to Sendgrid's REST API
-tidy_email_smtp.0.0.1: An OCaml library that simplifies connecting to SMTP servers

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• Homepage: https://github.com/jsthomas/tidy-email
• Source repo: git+https://github.com/jsthomas/tidy-email.git
• Bug tracker: https://github.com/jsthomas/tidy-email/issues

---

🐫 Pull-request generated by opam-publish v2.1.0

[kit-ty-kate]

The tests of tidy_email_mailgun failed with:

#=== ERROR while compiling tidy_email_mailgun.0.0.1 ===========================#
# context              2.0.9 | linux/x86_64 | ocaml-base-compiler.4.11.2 | pinned(https://github.com/jsthomas/tidy-email/archive/0.0.1.tar.gz)
# path                 ~/.opam/4.11/.opam-switch/build/tidy_email_mailgun.0.0.1
# command              ~/.opam/opam-init/hooks/sandbox.sh build dune build -p tidy_email_mailgun -j 31 @install @runtest
# exit-code            1
# env-file             ~/.opam/log/tidy_email_mailgun-107-5f1023.env
# output-file          ~/.opam/log/tidy_email_mailgun-107-5f1023.out
### output ###
# File "mailgun/test/dune", line 4, characters 12-24:
# 4 |  (libraries alcotest-lwt tidy_email_mailgun)
#                 ^^^^^^^^^^^^
# Error: Library "alcotest-lwt" not found.
# Hint: try:
#   dune external-lib-deps --missing --no-config --root . --ignore-promoted-rules --default-target @install --always-show-command-line --promote-install-files --release --only-packages tidy_email_mailgun -p tidy_email_mailgun --profile release -j 31 @install @runtest