ParseEmailHeaders.cls

ParseEmailHeaders.cls

public with sharing class ParseEmailHeaders {
  public Map<String, String> parseEmailHeaders(String headers) {
      Map<String, String> headersMap = new Map<String, String>();
      List<String> rows = headers.split('\n');
      for (String row : rows) {
        Integer div = row.indexOf(':');
        String rowKey = row.substring(0, div).trim();
        String rowValue = row.substring(div + 1, row.length()).trim();
        String existingValue = headersMap.get(rowKey);
        if (existingValue != null) {
          rowValue = existingValue + '; ' + rowValue;
        }
        headersMap.put(rowKey, rowValue);
      }
      return headersMap;
    }
  }