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Why am I receiving Mailer-Daemon notices for only one of many companies I deal with

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I use QuickBooks to send and post invoices. ThunderBird is the e-mail service tied into it. On 4/14 I started receiving Mailer-Daemon failure notice 544 for just one of my accounts when I tried e-mailing invoices to them. All the other accounts are fine.

I use QuickBooks to send and post invoices. ThunderBird is the e-mail service tied into it. On 4/14 I started receiving Mailer-Daemon failure notice 544 for just one of my accounts when I tried e-mailing invoices to them. All the other accounts are fine.

Chosen solution

A quick Google search of that message brings back this.

http://www.mailchannels.com/blog/2013/10/mxlogic-554-denied-cs/

Someone does not like the content of your message.

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All Replies (3)

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The error message usually give you the reason. Have to read the notice?

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The error code read: Remote host said: 554 denied [044df255.0.344618.00-2296.715945.p01c11m061.mxlogic.net] (mode: normal)

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Chosen Solution

A quick Google search of that message brings back this.

http://www.mailchannels.com/blog/2013/10/mxlogic-554-denied-cs/

Someone does not like the content of your message.