Canonical Voices

Posts tagged with 'email'

Colin Watson

Users of some email clients, particularly Gmail, have long had a problem filtering mail from Launchpad effectively.  We put lots of useful information into our message headers so that heavy users of Launchpad can automatically filter email into different folders.  Unfortunately, Gmail and some other clients do not support filtering mail on arbitrary headers, only on message bodies and on certain pre-defined headers such as Subject.  Figuring out what to do about this has been tricky.  Space in the Subject line is at a premium – many clients will only show a certain number of characters at the start, and so inserting filtering tags at the start would crowd out other useful information, so we don’t want to do that; and in general we want to avoid burdening one group of users with workarounds for the benefit of another group because that doesn’t scale very well, so we had to approach this with some care.

As of our most recent code update, you’ll find a new setting on your “Change your personal details” page:

Screenshot of email configuration options

If you check “Include filtering information in email footers”, Launchpad will duplicate some information from message headers into the signature part (below the dash-dash-space line) of message bodies: any “X-Launchpad-Something: value” header will turn into a “Launchpad-Something: value” line in the footer.  Since it’s below the signature marker, it should be relatively unobtrusive, but is still searchable.  You can search or filter for these in Gmail by putting the key/value pair in double quotes, like this:

Screenshot of Gmail filter dialog with "Has new words" set to "Launchpad-Notification-Type: code-review"

At the moment this only works for emails related to Bazaar branches, Git repositories, merge proposals, and build failures.  We intend to extend this to a few other categories soon, particularly bug mail and package upload notifications.  If you particularly need this feature to work for some other category of email sent by Launchpad, please file a bug to let us know.

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Chris Johnston

I have been a Google Chrome user for a while now, and I have two different ‘Users’ in Chrome. The default user is my personal account, and then I have a work account. For my personal email I use a Google Apps Gmail account and just check my email with Chrome. I use Thunderbird to check my work email. For a while now I have had an issue where I click a link from Thunderbird and it tries to open in my default Chrome user. This doesn’t work very well as I am not logged into most of my work accounts on my personal user. This drove me nuts! Now I have to copy and paste the URL into the work user Chrome window. After a little Googling tonight, I was able to setup Thunderbird to open URLs in my work user Chrome browser. Life is much better now! To do this, I had to add two lines to prefs.js. On Ubuntu 13.04, prefs.js is located at ~/.thunderbird//prefs.js where is what appears to be a random set of numbers/letters followed by .default.

The two lines I added are:

user_pref(“”, “/opt/google/chrome/google-chrome –profile-directory=’Profile 1′”);
user_pref(“”, “/opt/google/chrome/google-chrome –profile-directory=’Profile 1′”);

If the profile-directory for the Chrome user you are wanting the links to open in is different than what I have, you may need to edit the directory name. This worked for me on Raring (what will become Ubuntu 13.04) with Thunderbird 17.0.4.

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Since joining the Launchpad team my email has been flooded. I’ve always been pretty careful to keep my email clean and I’ve been a bit overwhelmed with all the new mailing lists. There are a bunch of people working on things, as you can imagine. So the email never stops. I’m still working on figuring out what I need to know, what I can ignore, and what should be filed away for later.

Another thing I’m finding is that I’ve got emails in both of my accounts around a single topic. For instance, I have to do some traveling. I’ve got emails on both my Gmail (personal) and Canonical (work) accounts that I really want to keep together in a single travel bucket.

I currently have offlineimap pull both of work and personal accounts down into a single folder on my machine ~/.email/. So I’ve got a ~/.email/work and a ~/.email/personal. I use mutt then to open the root there and to work through email. It works pretty well. Since I really wanted a global "travel" folder, I figured I’d just created one. So that works. I end up with a directory structure like:

  • personal
  • travel
  • work

The problem

Of course the issue here is that when offlineimap runs again it sees the email is no longer in the personal or work accounts and removes them from the server. And the travel folder isn’t a part of any server side account so it’s not backed up or synced anywhere. This means Gmail no longer sees things, my phone no longer sees them, and I’ve got no backups. Oops!

Solution start

So to fix that, my new directory structure needs to become an account. So I setup dovecot on my colo server. This way I could have an imap account that I could do whatever with. To get my email into there, I setup offlineimap on my colo to pull personal and work down as I had on my laptop. So I still have things in a ~/.email that’s from the accounts and then dovecot is keeping all of my email in ~/email (not a hidden dir). To get my email into there, I symlinked the ~/.email/personal/INBOX to ~/email/personal and did the same with the work account. Now the two accounts are just extra folders in my dovecot setup.

So there we go, colo is pulling my email, and I changed my laptop to offlineimap sync with the new dovecot server. In this way, I’ve got a single combined email account on my laptop using mutt. I then also setup my phone with an imap client to talk directly to the dovecot server. Sweet, this is getting closer to what I really want.

Issues start, who am I

Of course, once this started working I realized I had to find a way to make sure I sent email as the right person. I’d previously just told mutt if I was in the personal account to use that address and if in the work account use that one. Fortunately, we can help make mutt a bit more intelligent about things.

First, we want to have mutt check the To/CC headers to determine who this email was to, if it was me, then use that address as a From during replies.

mutt config:

# I have to set these defaults because when you first startup mutt
# it's not running folder hooks. It just starts in a folder
set from=""
# Reply with the address used in the TO/CC header
set reverse_name=yes
alternates "|"

This is a start, but it fails when sending new email. It’s not sure who I should be still. So I want a way to manually switch who the active From use is. These macros give me the ability to swap using the keybindings Alt-1 and Alt-2.

mutt config:

macro index,pager \e1 ":set\n:set status_format=\" %f [Msgs:%?M?%M/?%m%?n? New:%n?%?o? Old:%o?%?d? Del:%d?%?F? Flag:%F?%?t? Tag:%t?%?p? Post:%p?%?b? Inc:%b?%?l? %l?]---(%s/%S)-%>-(%P)---\"\n" "Switch to"
macro index,pager \e2 ":set\n:set status_format=\" %f [Msgs:%?M?%M/?%m%?n? New:%n?%?o? Old:%o?%?d? Del:%d?%?F? Flag:%F?%?t? Tag:%t?%?p? Post:%p?%?b? Inc:%b?%?l? %l?]---(%s/%S)-%>-(%P)---\"\n" "Switch to"

That’s kind of cool, and it shows in the top of my window who I am set to. Hmm, even that fails if I’ve started an email and want to switch who I am on the fly. There is a way to change that though, so another macro to the rescue, this time for the compose ui in mutt.

mutt config:

macro compose \e1 "<esc>f ^U Rick Harding <>\n"
macro compose \e2 "<esc>f ^U Rick Harding <>\n"

There, now even if I’m in the middle of creating an email I can switch who it’s sent as. It’s not perfect, and I know I’ll screw up at some point, but hopefully this is close enough.

Firming up with folder hooks

Finally, if I know the folder I’m in is ONLY for one account or the other, I can use folder hooks to fix that up for me.

mutt config:

folder-hook +personal.* set from=""
folder-hook +personal.* set signature=$HOME/.mutt/signature-mitechie
folder-hook +personal.* set query_command='"goobook query \'%s\'"'

So there, if I’m in my personal account, set the from, the signature, and change mutt to complete my addresses from goobook instead of the ldap completion I use for work addresses.

Not all roses

There are still a few issues. I lose webmail. After all, mail goes into my Gmail Inbox and then from there into various folders of my dovecot server. Honestly though, I don’t think this will be an issue. I tend to use my phone more and more for email management so as long as that works, I can get at things.

I also lose Gmail search for a large portion of my email. Again, it’s not killer. On my laptop I’ve been using notmuch (Xapian backed) for fulltext search and it’s been doing a pretty good job for me. However, I can’t run that on my phone. So searching for mail on there is going to get harder. Hopefully having a decent folder structure will help though.

I’ve also noticed that the K-9 mail client is a bit flaky with syncing changes up on things. Gmail, mutt, and I’ve also setup Thunderbird all seem to sync up ok without issue, so I think this is K-9 specific.

That brings up the issue of creating new folders. Offlineimap won’t pick up new folders I create from within mutt. It won’t push those up as new imap folders for some reason. I have to first create them using thunderbird, which sets up the folder server side for me. Then everything works ok. It’s a PITA, but hopefully I can find a better way to do this. Maybe even a Python script to hook into a mutt macro or something.

Wrap Up

So there we are. Next up is to setup imapfilter to help me pre-filter the email as it comes in. Now that all email is in one place that should be nice and easy. I can run that on my colo server and it’ll be quick.

This is obviously more trouble than most people want to go through to setup email, but hey, maybe someone will find this interesting or have some of their own ideas to share.

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Martin Pool

If you use gmail, you should now be able to send commands to Launchpad without gpg-signing.

gmail puts a DKIM cryptographic signature on outgoing mail, which is a cryptographic signature that proves that the mail was sent by gmail and that it was sent by the purported user. We verify the signature on Launchpad and treat that mail as trusted which means, for example, that you can triage bugs over mail or vote on merge proposals. Previously you needed to GPG-sign the mail which is a bit of a hassle for gmail.

(DKIM is signed by the sending domain, not by the user, so it doesn’t inherently prove that the purported sender is the actual one. People could intentionally or unintentionally set up a server that allows intra-domain impersonation, and it’s reported to be easy to misconfigure DKIM signers so that this happens. (Consider a simple SMTP server that accepts, signs and forwards everything from 192.168/16 with no authentication.) However, in cases like gmail we can reasonably assume Google don’t allow one user to impersonate another. We can add other trusted domains on request.)

If you have gmail configured to use some other address as your From address it will still work, as long as you verify both your gmail address and your other address.

You can use email commands to interact with both bugs and code merge proposals. For instance when Launchpad sends you mail about a new bug, you can just reply

  status confirmed
  importance medium

Thanks for letting us know!

We do this using the pydkim library.

Note that you do need at least one leading space before the commands.

If you hit any bugs, let us know.

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Martin Pool

Continuing on from our earlier work of sending less but better mail and making it faster to import i18n translation templates: Launchpad will no longer send mail when it successfully imports a template. You can see in the web ui when the template was last imported, and you will still get mail if there’s a problem.

I could hardly put it better than Riddell:

Danilo asked for my reasoning. My reasoning is that pointless e-mails are a pain.

Big pile of junk mail from Verizon

(I hope we’ll eventually have a more structured notification model, that will let you choose to see some notifications by mail and others in the web ui. One step at a time.)

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