[Galaxy S II Q&A, Help & Troubleshooting] estugarda:
Well, I did turn on notification in email app. And other notifications (missed calls, sms, calendar...) are working. I'm not aware of any general notification switch within CM9.1.0.

I don't have ExTweaks isntalled;

This is the list of all apps from Titanium Backup (Titanium not included);

Accounts (com.keramidas.virtual.ACCOUNTS)

Adobe Flash Player 11.1 11.1.115.27 (com.adobe.flashplayer)

Adobe Reader 10.4.1 (com.adobe.reader)

Advanced Task Manager 2.1.4 (mobi.infolife.taskmanager)

Android keyboard 4.0.4-eng..20120828.151325 (com.android.inputmethod.latin)

Android Live Wallpapers 4.0.4-eng..20120828.151325 (com.android.wallpaper)

Android System Info 1.25.0 (com.electricsheep.asi)

Apollo 1.0 (com.andrew.apollo)

Application Widgets (com.keramidas.virtual.APP_WIDGETS)

Battery Monitor Widget 2.6.6 (ccc71.bmw)

Black Hole 1.0 (com.android.galaxy4)

Bluetooth Pairings (com.keramidas.virtual.BLUETOOTH_PAIRINGS)

Bluetooth Share 4.0.4-eng..20120828.151325 (com.android.bluetooth)

Bookmarks (stock browser) (com.keramidas.virtual.XML_BOOKMARKS)

Browser 4.0.4-eng..20120828.151325 (com.android.browser)

Bubbles 1.0 (com.android.noisefield)

Calculator 4.0.4-eng..20120828.151325 (com.android.calculator2)

Calendar 4.0.4-eng..20120828.151325 (com.android.calendar)

Calendar Storage 4.0.4-eng..20120828.151325 (com.android.providers.calendar)

Call log (com.keramidas.virtual.XML_CALL_LOG)

Camera 1 (com.android.camera)

Certificate Installer 4.0.4-eng..20120828.151325 (com.android.certinstaller)

Clock 2.0.3 (com.android.deskclock)

com.android.backupconfirm 4.0.4-eng..20120828.151325 (com.android.backupconfirm)

com.android.sharedstoragebackup 4.0.4-eng..20120828.151325 (com.android.sharedstoragebackup)

com.android.smspush 4.0.4-eng..20120828.151325 (com.android.smspush)

com.android.wallpaper.holospiral 4.0.4-eng..20120828.151325 (com.android.wallpaper.holospiral)

Contacts 4.0.4-eng..20120828.151325 (com.android.contacts)

Contacts Storage 4.0.4-eng..20120828.151325 (com.android.providers.contacts)

Country, Language, Time zone (com.keramidas.virtual.COUNTRY_LANG_TZ)

CyanogenMod Wallpapers 4.0.4-eng..20120828.151325 (com.cyanogenmod.CMWallpapers)

Data usage (Policy & Stats) (com.keramidas.virtual.DATA_USAGE)

Dev Tools 1.0 (com.android.development)

Download Manager 4.0.4-eng..20120828.151325 (com.android.providers.downloads)

Downloads 4.0.4-eng..20120828.151325 (com.android.providers.downloads.ui)

DRM Protected Content Storage 4.0.4-eng..20120828.151325 (com.android.providers.drm)

Dropbox 2.2 (com.dropbox.android)

DSPManager 2.0 (com.bel.android.dspmanager)

Email 4.1 (com.android.email)

Exchange Rates 1.7.2 (net.xelnaga.exchanger)

Exchange Services 4.1 (com.android.exchange)

Face Unlock 4.0.4-299849 (com.android.facelock)

Galaxy S II Settings 4.0.4-eng..20120828.151325 (com.cyanogenmod.settings.device)

Gallery 1.1.30682 (com.google.android.gallery3d)

Gesture Search 2.0.1 (com.google.android.apps.gesturesearch)

Google Account Manager 4.0.4-299849 (com.google.android.gsf.login)

Google Backup Transport 4.0.4-255454 (com.google.android.backup)

Google Bookmarks Sync 4.0.4-299849 (com.google.android.syncadapters.bookmarks)

Google Calendar Sync 4.0.3-239410 (com.google.android.syncadapters.calendar)

Google Contacts Sync 4.0.4-299849 (com.google.android.syncadapters.contacts)

Google One Time Init 4.0.4-299849 (com.google.android.onetimeinitializer)

Google Partner Setup 4.0.4-299849 (com.google.android.partnersetup)

Google Play services 1.0.13 (com.google.android.gms)

Google Play Store 3.9.16 (com.android.vending)

Google Search 1.4.1.299849 (com.google.android.googlequicksearchbox)

Google Services Framework 4.0.4-299849 (com.google.android.gsf)

Google Text-to-speech Engine 4.0.4-299849 (com.google.android.tts)

GPS Test 1.2.9 (com.chartcross.gpstest)

Groundhog 1.20.3 (com.almarsoft.GroundhogReader)

HTML Viewer 4.0.4-eng..20120828.151325 (com.android.htmlviewer)

KeePassDroid 1.9.18.3 (com.android.keepass)

Key Chain 4.0.4-eng..20120828.151325 (com.android.keychain)

Live Wallpaper Picker 4.0.4-eng..20120828.151325 (com.android.wallpaper.livepicker)

Lucky Patcher 2.7.0 (com.dimonvideo.luckypatcher)

Magic Smoke Wallpapers 4.0.4-eng..20120828.151325 (com.android.magicsmoke)

Maps 6.14.1 (com.google.android.apps.maps)

Market Feedback Agent 4.0.4-299849 (com.google.android.feedback)

Market Updater 1.0 (com.android.vending.updater)

Media Storage 4.0.4-eng..20120828.151325 (com.android.providers.media)

Messages (SMS & MMS) (com.keramidas.virtual.XML_MESSAGES)

Messaging 4.0.4-eng..20120828.151325 (com.android.mms)

Movie Studio 1.1 (com.android.videoeditor)

Music Visualization Wallpapers 4.0.4-eng..20120828.151325 (com.android.musicvis)

My Uploads 1.5.14 (com.google.android.apps.uploader)

MyPhoneExplorer Client 1.0.22 (com.fjsoft.myphoneexplorer.client)

Network Location 1.1.08 (com.google.android.location)

News & Weather 1.3.04 (com.google.android.apps.genie.geniewidget)

NoLED 6.0.14 (com.led.notify)

OI File Manager 2.0.2 (org.openintents.filemanager)

Package Access Helper 4.0.4-eng..20120828.151325 (com.android.defcontainer)

Package installer 4.0.4-eng..20120828.151325 (com.android.packageinstaller)

Phase Beam 1.0 (com.android.phasebeam)

Phone 4.0.4-eng..20120828.151325 (com.android.phone)

Phone/Messaging Storage 4.0.4-eng..20120828.151325 (com.android.providers.telephony)

Pico TTS 1.0 (com.svox.pico)

Pro HDR Camera 2.35 (com.eyeappsllc.prohdr)

ProCapture 1.6.1.2 (com.neaststudios.procapture)

RealCalc 1.7.3 (uk.co.nickfines.RealCalc)

ROM Manager 5.0.2.0 (com.koushikdutta.rommanager)

Root Explorer 2.21.1 (com.speedsoftware.rootexplorer)

Search Applications Provider 4.0.4-eng..20120828.151325 (com.android.providers.applications)

Service Mode 1.0 (com.cyanogenmod.samsungservicemode)

Settings 4.0.4-eng..20120828.151325 (com.android.settings)

Settings Storage 4.0.4-eng..20120828.151325 (com.android.providers.settings)

Setup Wizard 1.3 (com.google.android.setupwizard)

SIM Toolkit 4.0.4-eng..20120828.151325 (com.android.stk)

Skype 2.9.0.315 (com.skype.raider)

Sound Recorder 4.0.4-eng..20120828.151325 (com.android.soundrecorder)

Spare Parts 4.0.4-eng..20120828.151325 (com.android.spare_parts)

System UI 4.0.4-eng..20120828.151325 (com.android.systemui)

Talk 4.0.4-299849 (com.google.android.talk)

Tapatalk 2.4.3 (com.quoord.tapatalkpro.activity)

Terminal Emulator 1.0.44 (jackpal.androidterm)

Theme Chooser 0.1 (com.tmobile.themechooser)

Themes Provider 2.0.25 (com.tmobile.thememanager)

Torch 4.0.4-eng..20120828.151325 (net.cactii.flash2)

Trebuchet 0.1 (com.cyanogenmod.trebuchet)

TvOut 1.0 (com.teamhacksung.tvout)

Unified Remote Full 2.5.2 (com.Relmtech.RemotePaid)

User Dictionary 4.0.4-eng..20120828.151325 (com.android.providers.userdictionary)

Voice Dialer 4.0.4-eng..20120828.151325 (com.android.voicedialer)

Voice Search 3.0.1 (com.google.android.voicesearch)

VpnDialogs 4.0.4-eng..20120828.151325 (com.android.vpndialogs)

Wallpaper (com.keramidas.virtual.WALLPAPER)

Wi-Fi Access Points (com.keramidas.virtual.WIFI_AP_LIST)

Wi-Fi Access Points (com.keramidas.virtual.XML_WIFI_AP_LIST)

YouTube 4.1.23 (com.google.android.youtube)