Mail deliverability test

Send an email to this address, from the address you actually mail from:

    8g2wyikvkaba@mailtest.jeffreyvis.nl

Then read the report:

    curl 8g2wyikvkaba.mailtest.jeffreyvis.nl
    https://tools.jeffreyvis.nl/mailtest/8g2wyikvkaba/

The address accepts one message and expires in 60 minutes. Subject and
content are up to you - write what you would normally send.