A little additional info. When I run send-email with --smtp-debug=1 I
get this.
```
Net::SMTP>>> Net::SMTP(3.13)
Net::SMTP>>> Net::Cmd(3.13)
Net::SMTP>>> Exporter(5.76)
Net::SMTP>>> IO::Socket::IP(0.41)
Net::SMTP>>> IO::Socket(1.46)
Net::SMTP>>> IO::Handle(1.46)
Net::SMTP: Net::Cmd::getline(): unexpected EOF on command channel: at
/usr/lib/git-core/git-send-email line 1556.
Unable to initialize SMTP properly. Check config and use --smtp-debug.
VALUES: server=smtp.migadu.com encryption=tls
hello=localhost.localdomain port=465 at /usr/lib/git-core/git-send-email
line 1583.
```
Hope that helps.
