Exchange: email rejected by Gmail

Symptom Emails sent to GMAIL recipients do not receive emails. You receive a return message of this type: Our system has detected that this message does not meet IPv6 sending guidelines regarding PTR records and authentication Cause This problem is related to IPv6, the message header contains an IPv6 address and Gmail attempts to authenticate …

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ARR: Setting Up for Outlook Anywhere

Config proxy

Using ARR as a load balancer for Exchange requires special settings for Outlook Anywhere. IIS setting 1. Open the IIS console and click Request Filtering. 2. On the Actions menu, click Change Function Settings … 3. Change the value Maximum allowable length of the content: 2147483648 (2GB) then click OK. Farm configuration 1. Go to …

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