Avast blocks all my emails 
I have to stop Avast’s email scanner! What’s the problem?
Which firewall do you use?
Did you allow ashMaiSv.exe to connect the Internet?
Which is your email program? And operational system?
- There is Windows Defender and Avira Antivir in my comp but I’m not sure if these programs have firewalls.
- I do not know what is “ashMaiSv.exe” and is it connecting the Internet.
- Mozilla Thunderbird
- Windows Vista Home Premium SP1
The problem is most likely the firewall blocking avast rather than avast blocking your email.
What is your firewall ?
Does it allow ashMaiSv.exe (the avast email scanner) internet access ?
- If it does delete the entry for it and try to collect your email, this will force the firewall to ask permission again.
Having just read your reply you have a second resident AV on your system which can cause conflicts and isn’t recommended. I don’t even know if the conflict might be causing this but avira doesn’t have an email scanner so I don’t know for sure, but in any case two resident scanners isn’t recommended.
None of the programs you mentioned is a firewall, open the Vista Security Center that should tell you what your firewall is.
Most probably a conflict with avast… choose one of them: or avast, or Antivir.
In theory you could go in the windows services management and set the AVIRA “guard” service on “disabled”, so you can eventually run the scanner manually when needed. I think you can also disable AVIRA scheduler but that way you can’t update it unless you download the updates from their site.
As general rule anyway it is better to not mix two antivirus software.
About Thunderbird, maybe you should read this:
I don’t know if that will disable any low level registry Legacy Device Drivers (the ones that do the intercepts) that are loaded and it is these that likely to clash.
This was true in old versions of Avira, not anymore.
The software will conflict at low level (drivers) and registry keys.
Sure I read and heard that it is wrong to switch on simultaneously two anti-virus programs, but the reality is no antivirus program itself gives a full guarantee from an infection. In my case Avast and Antivir mutually supplement each other’s work and protection, and by the way there were many times when one of these programs found viruses which have not been found by another.
Besides, I am already convinced purely by practical consideration, that a problem is not in Avira, and is not in conflict of programs. I already disabled Avira several times, but it has not helped. All the same Avast blocks all emails as did before. Now I try to understand so called Windows Defender. It has firewall. I’d like to understand, if it blocks work of Avast or not.
That is where you should choose an on-demand AV as a back-up scanner or use an on-line scanner, you are experiencing problems that could well be the result of conflict between two resident AVs. We have given you the advice it is up to you to use it or not it is your system.
As we have said disabling is not enough because it doesn’t disable the low level drivers.
So that’s it for me, I can do nothing other than advise if you chose not to use it is down to you.
In fact not… both antivirus will seek for the infection and get into a loop of access, read, stop the file execution…
Disable is not enough… sooner or later both will conflict for sure: services, low level drivers.
Windows Defender and Windows Firewall won’t bring a problem to avast to download emails.
Which is your ISP (email server)? Are you using Gmail?