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SMTP RCPT TO response time should be faster

Apparently, major email carriers and email filtering companies are starting to move to a more aggressive timeout for RCPT TO and other SMTP responses. For one, McAfee (MXLogic) uses a default of 60 seconds for RCPT TO timeouts. The RFC is for five minutes (300 seconds), but they apparently ignore this.

To keep up with these changes, the UTM should be able to provide RCPT TO responses in under 60 seconds, at least when address verification is turned off (ideally all the time). Problems with receiving emails from people that use major carriers like McAfee makes Sophos look bad, even if the UTM is meeting the RFC.

Please optimize the RCPT TO response time to under 60 seconds.

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John Kennedy shared this idea  ·   ·  Flag idea as inappropriate…  ·  Admin →

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