Avoid DataError when receiving emails with long subjects
Avoid DataError when receiving emails with long subjects

Cap at 100 as it dies at >255 and >100 is unreasonable anyway.

dwang159/iris-api,jrgp/iris-api-opensource,linkedin/iris,jrgp/iris-api-opensource,dwang159/iris-api,linkedin/iris,dwang159/iris-api,linkedin/iris,dwang159/iris-api,jrgp/iris-api-opensource,jrgp/iris-api-opensource,linkedin/iris