jaromail

a commandline tool to easily and privately handle your e-mail
git clone git://parazyd.org/jaromail.git
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commit 084c3c80b7f56c78283d8ee39a2e0eb3d2733dce
parent 542c25a9ae5aa03a8e25d5cb9d2872a9ae0c9478
Author: Jaromil <jaromil@dyne.org>
Date:   Wed, 14 Dec 2011 18:32:17 +0100

interesting howto about gmail

Diffstat:
Adoc/howto_gmail_fetchmail_and_procmail.txt | 596+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 596 insertions(+), 0 deletions(-)

diff --git a/doc/howto_gmail_fetchmail_and_procmail.txt b/doc/howto_gmail_fetchmail_and_procmail.txt @@ -0,0 +1,596 @@ + +making a backup of my gmail account with fetchmail and procmail + +Gentle introduction to email terminology + + In this post I’ll be talking about procmail, fetchmail and mutt. + Three programs to read and backup emails … Wait, three programs just to + read emails !? None sens ! + Well, actually it makes perfect sens: to read an email on your computer + with your favorite email client, you need to follow these steps: + 1. grab the email from your email provider (connect and download) + 2. filter/process is the email (in which mailbox do we store it – + possibly the spam mailbox, or your regular inbox) + 3. read it + + For each of these steps, the following jargon is used: + * when you download your email, you are using a mail transfer agent + i.e. [11]MTA + * when filtering/processing it, you are using a mail delivery agent + i.e. [12]MDA + * and finally when reading it, you are using a mail user agent + i.e. [13]MUA + + Weird ? Not really if you know the UNIX philosophy: each program does + one + thing, but it does it well (Yeah, I know: sounds like a real cliche). + + When you use thunderbird or outlook, you are using a MTA, MDA and MUA + at the + same time. I will not talk about mail submission agent + [14]MSA that is in charge of sending the email you wrote: this is out + of scope :-). + + Ok, now let’s go back to the purpose of this post: backing up my gmail + account. + +the big plan + + So, given the previous steps described above, I will: + * use fetchmail as my MTA to connect to gmail and retrieve my emails + * use procmail as my MDA to store the content in the various + mailboxes + * read it on mutt, yes mutt is my MUA + +step 1: retrieving mail with fetchmail + +configuring my gmail account + + google provides access to my email using [15]POP3 or [16]IMAP. + + I will retrieve my email using POP3, google provides interesting + features for it. The one I am interested in is located at settings -> + forward and pop/imap -> POP download. + Here I select “Enable POP for all mail (even mail that’s already been + downloaded)”: it will allow me to download all my emails, including the + ones I already did read. + WARNING: be sure to select “When messages are accessed with POP – + keep gmail’s copy in inbox” otherwise, gmail will remove your + downloaded email + from your account – which is not my intent. + + I also select, in the same page, enabling IMAP, so I can read my emails + from everywhere using the IMAP protocol which allows me to view my + emails from + anywhere while keeping them on the server i.e. I browse them, when I + finish reading my mail, it’s still there on the server: be sure to + check [17]IMAP wikipedia entry. + + I download them only for backup purpose and use POP3 for that. + + Do not forget to save the changes you made to your google account … + +dealing with gmail server security + + Access to my account is encrypted (a good thing) hence I need to setup + some security before beeing able to download some emails. + SSL as used by google, requires you to download some credentials from + a certificate authority; it is used to authenticate google server i.e. + making sure you really are connecting to google and not to some random + (and possibly malicious) server. + + First, I need to retrieve the certificate of the CA used by google: +# wget -O Equifax_Secure_Certificate_Authority.pem https://www.geotrust.com/reso +urces/root_certificates/certificates/Equifax_Secure_Certificate_Authority.cer + + and convert it to something that can actually be used by our beloved + ssl tools: +# openssl x509 -in Equifax_Secure_Certificate_Authority.pem -fingerprint -subjec +t -issuer -serial -hash -noout + + I now store it where they can latter be referenced and checked. Since I + am always setting up workstations when moving from one workplace to + another, I store that kind of information in the UNIX account that has + been given to me: +# mkdir ~/.certificates +# mv Equifax_Secure_Certificate_Authority.pem ~/.certificates + + Now I make them available to the various programs I use: +# c_rehash ~/.certificates + + On opensolaris c_rehash is not available (I don’t know why). It’s a + perl script and I found a version using google code [18]here. + + cut and paste this code into a file named c_rehash and execute it: +# cd ~ +# perl c_rehash .certificates +Doing .certificates/ +Equifax_Secure_Certificate_Authority.pem => 594f1775.0 + + This is it for the security part, SSL credentials are now ready to be + used by fetchmail. + +configuring fetchmail for POP access + + my gmail account is something like: + * user ‘vodoom@gmail.com’ + * pop3 server is ‘pop.gmail.com’ + + my local settings are: + * user on my machine is ‘ppereira’ + * my google certificate is located at ‘~/.certificates’ (see previous + step) + * mda to be used is ‘procmail’ (more on that later) + + The corresponding fetchmail configuration (to be stored in + ~/.fetchmailrc): +set daemon 600 +poll pop.gmail.com with proto POP3 and options no dns +user 'vodoom@gmail.com' there is 'ppi' here +options keep ssl sslcertck sslcertpath '~/.certificates' +mda '/usr/bin/procmail -d %T' + + For more details about these options, see [19]fetchmail’s manual. + +configuring procmail for delivery + +spam filtering ? + + Note that there is no spam filtering configuration here: since this + setup is only for my gmail account, I rely on gmail spam filter to take + care of those. + If you need a spam filtering setup, you may want to have a look at + http://wiki.apache.org/spamassassin/UsedViaProcmail. + +managing my mailing lists + + I use the TO_ recipe rule of procmail: I do not use the list-id header, + it is more covenient for me as explained + in http://www.ii.com/internet/robots/procmail/qs/#alt2TO. + Procmail recipes are matching rules associated with a mailbox (yes, I + am over simplifying). + For example, here is a simple recipe: +:0: +* ^TO_zfs-discuss@opensolaris.org +osol-zfs + + :0: is the delivery options, in my case I want locking when accessing + to the inbox (that’s the second ‘:’) + + * ^TO_zfs-discuss@opensolaris.org + means that we want to match messages that were sent + to zfs-discuss@opensolaris.org + One can use regular expressions and special matching rules e.g. ^From + to create a matching rule. + + osol-zfs tells procmail to store this email in the mailbox ‘osol-zfs’ + + here are my recipes to match the mailing lists I am subscribed to: +:0: +* ^TO_zfs-discuss@opensolaris.org +osol-zfs + +:0: +* ^TO_perf-discuss@opensolaris.org +osol-perf + +:0: +* ^TO_opensolaris-code@opensolaris.org +osol-code + +:0: +* ^TO_opensolaris-announce@opensolaris.org +osol-announce + +:0: +* ^TO_indiana-discuss@opensolaris.org +osol-indiana + +:0: +* ^TO_ogb-discuss@opensolaris.org +osol-board + +:0: +* ^TO_eeepc-discuss@opensolaris.org +osol-eeepc + +:0: +* ^TO_crypto-discuss@opensolaris.org +osol-crypto + +:0: +* ^TO_xvid-devel@xvid.org +xvid-devel + +:0: +* ^TO_users@crater.dragonflybsd.org +dragonfly-bsd + + All those recipes are stored in their own file: rc.mailing-lists. + This file will be included from a ‘master’ file, the main .procmailrc + file. + The .procmailrc file looks like: +# Directory for storing procmail configuration and log files +# You can name this variable anything you like, for example +# PROCMAILDIR, or don't set it (but then don't refer to it!) +PROCMAIL_DIR=$HOME/procmail +SHELL=/bin/sh + +# LOGFILE should be specified ASAP so everything below it is logged +LOGFILE=$PROCMAIL_DIR/procmail.log + +# where are the various mailboxes stored ? +# note that this is *not* the location of the system email +# this is where I want my mailboxes to be stored by procmail i.e. the +# destination after filtering +MAILDIR=$HOME/mail + +# recipes/filters are included from here +INCLUDERC=$PROCMAIL_DIR/rc.mailing-lists +INCLUDERC=$PROCMAIL_DIR/rc.banking + + Now that procmail is setup, time to retrieve some emails: +# fetchmail -vk +File /export/home/ppi/.fetchmailrc must have no more than -rwx--x--- (0710) perm +issions. + + oops I forgot to setup the proper permissions for the .fetchmailrc + file, + let’s fix that: +# chmod 710 .fetchmailrc + + Running it again, and failing again for a very different reason, from + my logfile in ~/fetchmail/fetchmail.log: +fetchmail: starting fetchmail 6.3.8 daemon +fetchmail: 6.3.8 querying pop.gmail.com (protocol POP3) at Thu Jan 28 00:06:43 2 +010: poll started +fetchmail: getaddrinfo("pop.gmail.com","pop3s") error: service name not availabl +e for the specified socket type +fetchmail: Try adding the --service option (see also FAQ item R12). +fetchmail: POP3 connection to pop.gmail.com failed: Bad file number +fetchmail: 6.3.8 querying pop.gmail.com (protocol POP3) at Thu Jan 28 00:06:43 2 +010: poll completed +fetchmail: Query status=2 (SOCKET) +fetchmail: sleeping at Thu Jan 28 00:06:43 2010 for 600 seconds + + hum, fetchmail is looking for the port number corresponding to the + ‘pop3s’ service. AFAIK, on my opensolaris box I don’t have such service + configured: +# grep -i pop3s /etc/services +# + + To connect to gmail I have to manually setup use the port number + corresponding to ‘pop3s’, as suggested by fetchmail in the log: + 'fetchmail: Try adding the --service option (see also FAQ item R12).' + so here I go again: + # fetchmail -vk --service 995 + now from my fetchmail log I can see: +fetchmail: 6.3.8 querying pop.gmail.com (protocol POP3) at Fri Jan 29 00:15:07 2 +010: poll started +fetchmail: Trying to connect to 74.125.93.111/995...connected. +fetchmail: Issuer Organization: Google Inc +fetchmail: Issuer CommonName: Google Internet Authority +fetchmail: Server CommonName: pop.gmail.com +fetchmail: pop.gmail.com key fingerprint: 92:73:17:4C:34:4B:68:F7:B2:17:71:42:0D +:7F:9F:33 +fetchmail: POP3< +OK Gpop ready for requests from 70.31.248.56 8pf4635265qwj.1 +fetchmail: POP3> CAPA +fetchmail: POP3< +OK Capability list follows +fetchmail: POP3< USER +fetchmail: POP3< RESP-CODES +fetchmail: POP3< EXPIRE 0 +fetchmail: POP3< LOGIN-DELAY 300 +fetchmail: POP3< X-GOOGLE-VERHOEVEN +fetchmail: POP3< UIDL +fetchmail: POP3< . +fetchmail: POP3> USER vodoom@gmail.com +fetchmail: POP3< +OK send PASS +fetchmail: POP3> PASS * +fetchmail: POP3< +OK Welcome. +fetchmail: POP3> STAT +fetchmail: POP3< +OK 354 21544383 +fetchmail: POP3> LAST +fetchmail: POP3< -ERR Not supported +fetchmail: Not supported +fetchmail: POP3> UIDL +fetchmail: POP3< +OK +fetchmail: POP3< 1 GmailIdfbe952ed20bfe97 +fetchmail: POP3< 2 GmailIdfc26b09f74e3775 +fetchmail: POP3< 3 GmailIdfc6f980243d2a13 +fetchmail: POP3< 4 GmailId1043d10888f8ed70 +... +fetchmail: POP3< 354 GmailId10e7b3433c301f94 +fetchmail: POP3< . +fetchmail: 354 messages for vodoom@gmail.com at pop.gmail.com (21544383 octets). +fetchmail: POP3> LIST 1 +fetchmail: POP3< +OK 1 1694617 +fetchmail: POP3> RETR 1 +fetchmail: POP3< +OK message follows +fetchmail: reading message vodoom@gmail.com@pop.gmail.com:1 of 354 (1694617 octe +ts) +... + + Yes ! This is working :-) + + So now my gmail account is backed up. From time to time I run my + fetchmail script, and it downloads the new emails that are not yet + backed up. + If like me you have thousands of emails waiting to be download, be + patient, as emails are not downloaded in a single connection: each + connection will download hundreds of emails, fetchmail will have to + reconnect to download the rest. This is fine, that’s why I setup the + daemon mode in fetchmail :-). + + Ok now I have to access my emails with IMAP, but thats another post :-) + + enjoy and share. + +Share this: + + * [20]StumbleUpon + * [21]Digg + * [22]Reddit + * + +Like this: + + [23]Like + Be the first to like this post. + __________________________________________________________________ + +About this entry + + You’re currently reading “making a backup of my gmail account with + fetchmail and procmail,” an entry on my core dump is your sigfault + + Published: + 9 February, 2010 / 12:40 am + + Category: + [24]configuration, [25]email, [26]unix + + Tags: + [27]backup, [28]email, [29]fetchmail, [30]gmail, [31]procmail + __________________________________________________________________ + +No comments yet + + [32]Jump to comment form | [33]comment rss [?] | [34]trackback uri + [35][?] + +Leave a Reply [36]Cancel reply + + Enter your comment here... + + ____________________________________________________________ + 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[47]mutt-gmail.conf + + [48]muttrc + + [49]procmailrc + + [50]vimrc + +Recently + + * [51]11.03 simple and dirty FIX 4.2 parser and decoder + * [52]10.13 ion3 repository and patches on bitbucket + * [53]08.31 gnu/stubs-32.h: No such file or directory + * [54]02.09 making a backup of my gmail account with fetchmail + and procmail + * [55]11.18 virtualbox: setting up 1680×1050 screen resolution + * [56]05.06 xvid on opensolaris + * [57]04.05 migrating data from linux to opensolaris and zfs with a + mirror setup + * [58]03.27 const variable, const pointer and invalid const + assignment in c++ + * [59]12.28 setting up my workstation: tweaking firefox, mutt and vim + * [60]12.16 Multi-core programming and design: tips and tricks + +Monthly Archives + + * [61]November 2010 (1) + * [62]October 2010 (1) + * [63]August 2010 (1) + * [64]February 2010 (1) + * [65]November 2009 (1) + * [66]May 2009 (1) + * [67]April 2009 (1) + * [68]March 2009 (1) + * [69]December 2008 (2) + * [70]October 2008 (1) 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http://vodoom.wordpress.com/configuration-files/mutt-gmailconf/ + 48. http://vodoom.wordpress.com/configuration-files/muttrc/ + 49. http://vodoom.wordpress.com/configuration-files/procmailrc/ + 50. http://vodoom.wordpress.com/configuration-files/vimrc/ + 51. http://vodoom.wordpress.com/2010/11/03/simple-and-dirty-fix-4-2-decoder/ + 52. http://vodoom.wordpress.com/2010/10/13/ion3-repository-on-httpbitbucket-orgppianionoverview/ + 53. http://vodoom.wordpress.com/2010/08/31/gnustubs-32-h-no-such-file-or-directory/ + 54. http://vodoom.wordpress.com/2010/02/09/making-a-backup-of-my-gmail-account-with-fetchmail-and-procmail/ + 55. http://vodoom.wordpress.com/2009/11/18/virtualbox-setting-up-1680x1050-screen-resolution/ + 56. http://vodoom.wordpress.com/2009/05/06/xvid-on-opensolaris/ + 57. http://vodoom.wordpress.com/2009/04/05/migrating-data-from-linux-to-opensolaris-and-zfs-with-a-mirror-setup/ + 58. http://vodoom.wordpress.com/2009/03/27/const-variable-cont-pointers-and-invalid-const-assignment-in-c/ + 59. http://vodoom.wordpress.com/2008/12/28/setting-up-my-workstation-tweaking-firefox-mutt-and-vim/ + 60. http://vodoom.wordpress.com/2008/12/16/multi-core-programming-and-design-tips-and-tricks/ + 61. http://vodoom.wordpress.com/2010/11/ + 62. http://vodoom.wordpress.com/2010/10/ + 63. http://vodoom.wordpress.com/2010/08/ + 64. http://vodoom.wordpress.com/2010/02/ + 65. http://vodoom.wordpress.com/2009/11/ + 66. http://vodoom.wordpress.com/2009/05/ + 67. http://vodoom.wordpress.com/2009/04/ + 68. http://vodoom.wordpress.com/2009/03/ + 69. http://vodoom.wordpress.com/2008/12/ + 70. http://vodoom.wordpress.com/2008/10/ + 71. http://vodoom.wordpress.com/2008/09/ + 72. http://vodoom.wordpress.com/2008/07/ + 73. http://blogs.sun.com/ahl/ + 74. http://blogs.sun.com/aland/ + 75. http://blogs.sun.com/akolb/ + 76. http://www.artima.com/ + 77. http://blog.cplusplus-soup.com/ + 78. 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