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Outbound email failure for certain recipients

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Recipient Disposition: [250 Queue (All MX servers are unavailable for domain securservice.it); Mode: normal; Queued: yes; Frontend TLS: no]
Detail: first attempt failure: 451 all mx servers are unavailable for domain securservice.it

For certain suppliers we have problems to send them email. Like the example above.

We can receive without problems.

Is there a fix or workaround?

Thank you

1 Solution

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kwidhalm
Level 11
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Message 10 of 10

Re: Outbound email failure for certain recipients

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Hello christian.soverini,

Please contact your SaaS support team to request additional investigation of this issue.

In most cases, this error indicates we were unable to connect to the recipient server, but contacting support can confirm if this is the case for your failed messages and provide additional information if there is another issue at play.

Thank you,

System Support Team

Intel Security.

SaaS Email & Web Security Technical Support

9 Replies
exbrit
Level 21
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Message 2 of 10

Re: Outbound email failure for certain recipients

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Moved to Business General for better support

---

Peter

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exbrit
Level 21
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Message 3 of 10

Re: Outbound email failure for certain recipients

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@christian.soverini I removed the email part of your user name for your safety.

Please could you indicate what McAfee product you are discussing in your first post please?

I will then move the thread to an appropriate area.

Re: Outbound email failure for certain recipients

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it the antispam email protection and continuity.

Thank you

exbrit
Level 21
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Message 5 of 10

Re: Outbound email failure for certain recipients

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Enterprise or retail (Consumer) versions?   Can you give an exact name and version of the software suite please?

Re: Outbound email failure for certain recipients

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SaaS email protection.

exbrit
Level 21
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Message 7 of 10

Re: Outbound email failure for certain recipients

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Moved to SaaS Email Security for faster support.  Good luck ;-)

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Peter

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frankm
Level 10
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Message 8 of 10

Re: Outbound email failure for certain recipients

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Did they send you this message audit report?

Re: Outbound email failure for certain recipients

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This message audit report it's from our portal. Do you need more info?

kwidhalm
Level 11
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Message 10 of 10

Re: Outbound email failure for certain recipients

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Hello christian.soverini,

Please contact your SaaS support team to request additional investigation of this issue.

In most cases, this error indicates we were unable to connect to the recipient server, but contacting support can confirm if this is the case for your failed messages and provide additional information if there is another issue at play.

Thank you,

System Support Team

Intel Security.

SaaS Email & Web Security Technical Support