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Tertiary-mx: Difference between revisions

Tertiary-mx (view source)

Revision as of 13:42, 16 June 2020

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*Message size is over 1GB.
*The server will 'greylist' hosts. It will always defer (cause a temporary delivery failure) messages/connections under the following circumstances:
*Sending host in a DNS blacklistblocklist
*Header syntax errors
*Recipient rejected by the primary MX (It does a call back to the primary MX if it is available)
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