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undelivered

  1. H

    Resolved Gmail - undelivered mails, mails going to the spam folder

    Hello, I have a problem with sending emails from my server. When I try to send an email to a gmail address, it return an error: Undelivered Mail Returned to Sender This is the mail system at host alfa.nester.cz. I'm sorry to have to inform you that your message could not be delivered to one or...
  2. EnriqueR

    Undelivered Mail Returned to Sender SPF problem

    I have a VPS linux server with 3 IPs. When I send a message to some domains, if sender server have activated the SPF system, it returned messages saying that the sender IP does not match the domain. This of course is true because a VPS server, domains share IP. Currently I have a domain DNS TXT...
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