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pre-populating email subject with a long sentence

I am trying to pre-populate email subject with a rather long sentence. The mail client cuts half of it off though. Is there a way around it?

Solution

  • As it is shown here What is the email subject length limit?, there is an intrinsic limitation for each subject's line, which is of 998 (the maximum allowed), with a suggestion to limit to 78 characters.

    The answer I linked suggests to add a carriage return, in order to overcome the limit.

    So, instead of having as header:

    Subject: This is a test

    You should have:

    Subject: This
is a test

    You can try with the urlencoded version of a carriage return, which is: %0D

    It's not the best solution (since having the subject on multiple lines is not the best), but it could be a good workaround to this limitation.