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Identifying Inb connections that are holding open/consuming mail sentinel connections

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  • Identifying Inb connections that are holding open/consuming mail sentinel connections

    We are seeing multiple mail connections staying open and the connection count climbs to max,mail stalls.(Presumably due no connections available and the connections not being released)
    Short of Packet Capture/Sniffing/Wireshark or perhaps analysis of the mail sentinel/proxy log, is there any way to see the source address or even the email for the mail sentinel inbound connections that are currently in use?
    Any help/thoughts/ideas would be appreciated.

  • #2
    Hello stuza1,

    You may review all Mail Proxy Statistics within [Monitor -> Activity -> Threat Management -> Mail Proxy -> Statistics]. If you are using the Grey Listing portion of the Anti-Spam feature, specific information for Grey Listed emails can be viewed within [Monitor -> Activity -> Threat Management -> Mail Proxy -> Anti-Spam -> Greylisting]. Beyond that, the best place to investigate Mail Proxy connections is within [Monitor -> Log Messages -> Mail Proxy]. Keep in mind that the Mail Proxy Maximum Connections threshold can be increased by changing the corresponding value within [Configure -> Threat Management -> Mail Proxy -> Proxy].

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    • #3
      Hi,
      Thank you. After monitoring the logs. We applied Country blocking to a lot of countries from which we do not expect email, and this has reduced the issue drastically.

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