Sometimes when using dynamic ports, you also need properties from the advanced transport properties tab. These are the ones I have already used:
- BizTalkMessage(BTS.RetryCount) = 5 (Specifies how often sending on the port is retried)
- BizTalkMessage(BTS.RetryInterval) = 5 (Specifies how many minutes to wait before the next retry)
- BizTalkMessage(FILE.CopyMode) = 0 (Specifies the behaviour when copying files: 0 = append, 1 = create, 2 = overwrite)