Email.send with ionos not working

help
1

hi everyone,

so my mail_url that used to work with ionos is like this:
smtps://test%40mydomain.de:somepassword@smtp.ionos.de:465

with it i could use Email.send from the meteor email package without problems. some weeks ago that changed. now i get this error:
Error: Mail command failed: 550-Requested action not taken: mailbox unavailable 550 Sender address is not allowed.

so i tried to use nodemailer directly:

const msgContent = {
      //from: from.emails[0].address,
      from: "test2@mydomain.de",
      to: recipients.to.map(r => r.emails[0].address),
      cc: recipients.cc.map(r => r.emails[0].address),
      bcc: recipients.bcc.map(r => r.emails[0].address),
      messageId: msg._id,
      subject: msg.getSubject(i18n, recipients.to[0]),
      text: msg.getBody(i18n, recipients.to[0])
    };
    const cfg = {
      host: 'smtp.ionos.de',
      port: 465,
      secure: true,
      auth: {
        user: 'test@mydomain.de',
        pass: 'somepassword'
      }
    };
    const transporter = require("nodemailer").createTransport(cfg);
    transporter.sendMail(msgContent, (err, inf) => {
       ...
   });

and it just works. what could be the reason for this behaviour?

2

Did you try Google? 550 requested action not taken: possible solutions - IONOS