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Send Email via Smarthost on Your VPS with Us

Outgoing port 25 is blocked by default. Please use the relay server as detailed here, or open a ticket and request for block to be removed.

If you have purchased a VPS, you have the option to send your emails via our Smarthost relay powered by MailChannels Smart Host. By doing this, you can ensure that your emails always reach their destination.

Relay server is: relay.hostup.se

You can send via both port 25 and 587 with TLS encryption.

[Prerequisites]

  • You must be a VPS customer with us and use our IP addresses.
  • Make sure you have root access to your VPS.

Configure postfix

If you’re using Postfix, you can do the following to send emails via our relay.

Edit the /etc/postfix/main.cf file and set the following value:

relayhost = [relay.hostup.se]

That’s all. For the changes to take effect, you need to restart Postfix.

systemctl restart postfix

SPF record

Domains need to have the following SPF record: v=spf1 a mx include:spf.hostup.se ~all

If you already have an SPF record, simply add include:spf.hostup.se to your current SPF record to also allow our relay to send mail.

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