Images in email are a common carrier the malware. Reasonable users explicitly disable automatic downloading of images in clients that offer that option.
Sent from my test iPhone > On Oct 2, 2018, at 20:30, Greg Troxel <[email protected]> wrote: > > Enrico B <[email protected]> writes: > >> This is a big problem because of so many messages with referenced but non >> included images. >> >> And because so many messages and information are right in the images. > > That is a problem. But, it's a matter of opinion if it's a problem with > the client or with the sender. Arguably, if the message can't be read > without the images, it's a violation of accessibility considerations. > So I side with those that say the problem is the incoming messages, not > the client. > >> It means you can read your inbox messages just in case you are online. > > That seems like an overly strong characterization of the situation. I > read mail with k-9, configured not to fetch images, and with gnus > (emacs), configured to show me the text/plain alternative. This works > fine in most cases. In cases where it doesn't, I consider the message > defective. > > As an example, I recently got a library newsletter that had text > descriptions of upcoming talks. There was a referenced image, but the > html had an ALT tag that said "picture of red leaf with shallow depth of > field". That's good practice to make the message useful for > visually-impaired readers, and it worked for me reading the message > without the image. > > > One could argue that if the sender intended the image contentto reach > the receiver for offline viewing, then it would have been included in > the message. It's really an artifact of the html encoding of mail that > referenced images are even allowed, and with the benefit of hindsight > I'd say it was a protocol design error. Mail was sent over non-IP > transports and the notion that the receiver's MUA in all cases can fetch > things from the global internet is unsound. > >> What's more, images are not fetched even in case you had already previously >> open and read the message when you were online. > > That would be a reasonable optional feature (but would need cache size > management and settings, so might be too complicated for the benefit). > >> How is it possible that this app has such a limitation? > > It seems obvious that it is not only possible but likely that various > programs will not do a large number of random things that you wish they > would do. How is it possible that you do not understand this :-) ? > >> Is it an usual limitation for most Android email clients? > > My impression is that it is how almost all mail clients behave. I am > not aware of any that pre-fetch and cache images that are referenced but > not included. > > Thunderbird does not seem to do this (and tells people that enabling > remote content by default is a bad idea): > https://support.mozilla.org/en-US/kb/remote-content-in-messages > > Can you point to another open-source mail user agent that prefetches and > caches referenced images? > > -- > You received this message because you are subscribed to the Google Groups > "K-9 Mail" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups "K-9 Mail" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
