240
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1 \begin{tabular}[Hbt]{| l | c || c | c | c |}
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2 \hline
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3 Requirement & Focus & S1 & S2 & S3 \\
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4 \hline \hline
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264
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5 \RF7: encryption (\TODO1) & +++ & x & & \\
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6 \RF6: authentication (\TODO2) & +++ & x & & \\
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7 \RG1: security (\TODO3) & +++ & & x & x \\
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8 \RG2: reliability (\TODO4) & +++ & & & x \\
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9 \RF8: spam handling (\TODO5) & +++ & x & x & x \\
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10 \RG4: extendability (\TODO6) & +++ & & & x \\
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240
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11 \hline
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12 \RG3: robustness & ++ & & & x \\
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13 \hline
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14 \RF1: in/out channels & + & x & x & x \\
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15 \RF2: mail queueing & + & & & x \\
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16 \RG5: maintainability & + & & & x \\
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17 \hline
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18 \RF5: route selection & 0 & x & & \\
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19 \RF9: malware handling & 0 & x & x & x \\
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20 \RF10: archiving & 0 & x & & x \\
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21 \RG6: testability & 0 & & & x \\
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22 \hline
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23 \RF3: header sanitizing & - & x & & \\
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24 \RF4: aliasing & - & x & & \\
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25 \RG10: usability & - & x & & \\
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26 \hline
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27 \RG8: availability & -{}- & x & & \\
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28 \hline
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29 \RG7: performance & -{}-{}- & x & & \\
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30 \RG9: portability & -{}-{}- & x & & \\
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31 \hline \hline
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32 Score (Sum of `+') & 23 & 9 & 7 & 17 \\
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33 \hline
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34 \end{tabular}
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35
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36
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37
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38
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