What is a Backup MX Mail Spooling Service?

Discussion in 'Mail Server Support' started by popowich, Nov 11, 2008.

  1. popowich

    popowich EQ Forum Admin Staff Member

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    Hello,

    What is a Backup MX or Mail Spooling service? Mail spooling is a service provided to you by your ISP that enables their mail servers to accept and hold on to your e-mail when your mail server does down. This is a service still commonly offered by mail providers, but I believe it is dated and should not be used unless you have a good reason for it. There are several issues surrounding mail spooling services including:

    • You give at least partial control of your incoming mail policies to your ISP
    • Spammers tend to target mail spooling services since they typically have weak anti-spam measures in place
    • Most modern mail servers are always online and not on dialup connections
    • There are more servers to check when troubleshooting mail problems
    • Mail spooling can result in "missing" e-mail when your server is down, resulting in...
    • Business clients do not get a bounce message from their SMTP relay servers letting them know that the e-mail they sent has not really been delivered yet. This can be important for time critical e-mails.
    Most mail servers will try and resend e-mail to your servers for a few days if your server does happen to have a major problem and go offline. I recommend having multiple incoming mail servers in place over having a primary and secondary mail server setup when possible. The only reason I'd use such a service on today's internet is if I had a mail server that by design would not be available on the internet 24/7.

    If you were looking for information about backing up the e-mail on your computer please see our e-mail tutorial How To Backup Your E-Mail.
     


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