Quote:
Originally Posted by Graham M
Don't forget it's most likely compressed at their end, and since everything in an email (inc attachments) is encoded as text it probably compresses very well indeed
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Not really. The attachments will be stored as is, they won't be held at Google in ASCII format, moreover that text will not compress well as it will lack the usual repetition and patterns present in standard text files. It's those patterns that make text so compressible, 8 bit binary converted to 7 bit ASCII doesn't tend to have those and the binary -> ASCII conversion increases file size somewhat.