For a Life Cycle Assessment about mail we needed to parse a lot of emails and make statistics:
- number of recipients (to, cc)
- number and size of attachments
- print the date in a standard format (rfc3339)
We first used python mail module, but it was too slow (days).
./mail-inspector
Usage: mail-inspector [FILE] <COMMAND>
Commands:
display-recipients
display-sender
count-recipients
count-attachments
email-date
help Print this message or the help of the given subcommand(s)
Arguments:
[FILE]
Options:
-h, --help Print help
-V, --version Print version
For example to dump attachments for several email files in a folder:
for email in myfolder/*.eml ; do ./mail-inspector count-attachments $email; done
"myfolder/attachment.eml" "data_processing.drawio" 1591
"myfolder/attachment.eml" 1 1591
"myfolder/mail_2_attachments.eml" "data_processing.drawio" 1591
"myfolder/mail_2_attachments.eml" "content.md" 2816
"myfolder/mail_2_attachments.eml" 2 4407
"myfolder/mail_embbedded.eml" "data_processing.drawio" 1591
"myfolder/mail_embbedded.eml" 1 1591
"myfolder/mail.eml" 0 0And to show number of recipients:
for file in myfolder/*.eml ; do ./mail-inspector count-recipients $file; done
"myfolder/attachment.eml" 1
"myfolder/mail_2_attachments.eml" 1
"myfolder/mail_embbedded.eml" 1
"myfolder/mail.eml" 15