This is related to Ticket #1678, but I'm creating this new ticket
for a more specific current need rather than resurrecting a 7-year
old ticket.
I often have the need to look at the full headers for a
particular message, including all of the Received headers. This is
especially important when trying to diagnose phishing or spam, as
well as when the sender used a mailing list or BCC.
The existing Show Raw Message option mostly works fine for
smaller messages. The problem occurs when the message is very
large, especially when it contains multiple attachments. MailMate
displays these messages fine initially, but it chokes when using
the Show Raw Message feature. It can take a long time (roughly a
minute) for the parser to display the raw content. But lately, more
often than not, I find it tends to crash MailMate completely or
cause a memory leak where my Mac eventually prompts to force quit
the app.
The irony is that I don't need to see the raw encoded MIME
base64 text for these huge messages, which is what it is spending
all that time and effort trying to display. I only need to see the
headers, which are roughly the top 30 lines. That should be an
extremely fast task for any mail client to do without using a ton
of memory or crashing. Even Outlook, which I'm sure many of us are
not fond of, has always had an option to show "Internet Headers"
under "File > Properties", which can then be copied and pasted
somewhere else if needed.
Please consider this hopefully simple request as a critical
feature for those of us who need to troubleshoot e-mail delivery
issues on a regular basis.
Thank you!
Alan