Undelivered Mail Returned to Sender

Dobrý deň,

Mám problém s odosielaním mailov, raz za čas sa stane že mi príde nasledujúca správa

This is the mail system at host wes1-so2.wedos.net.

I’m sorry to have to inform you that your message could not

be delivered to one or more recipients. It’s attached below.

For further assistance, please send mail to postmaster.

If you do so, please include this problem report. You can

delete your own text from the attached returned message.

The mail system

<***@gmail.com>: host gmail-smtp-in.l.google.com[142.250.102.26]

said: 550-5.7.1 [46.28.106.46] Messages missing a valid messageId header

are not 550 5.7.1 accepted.

jz15-20020a17090775ef00b0072a84dbd3c6si9469322ejc.666 – gsmtp (in reply to

end of DATA command)

SPF záznam mám len jeden nastavená a to v=spf1 mx a include:_spf.we.wedos.net -all