Firewall is blocking my IP, blocking emails receiving

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sppa
Posts: 14
Joined: Mon Jun 29, 2020 12:08 pm
Firewall is blocking my IP, blocking emails receiving

Post by sppa »

Hello everytime i refresh my emails i got an ip firewall ban, how can i fix that?

sppa
Posts: 14
Joined: Mon Jun 29, 2020 12:08 pm
Re: Email sync cause ip ban

Post by sppa »

Hello thanks for the quick response, i use microsoft outlook on my pc/macbook/smartphone. I have 13 mails in the macbook outlook client. Maybe the 13 accounts sync at the same time is the problem?

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myVesta
Site Admin
Posts: 574
Joined: Fri Jun 19, 2020 9:59 am
Re: Email sync cause ip ban

Post by myVesta »

Probably some of them is sending wrong password, and fail2ban service block your IP.
You can see what email account is it with:

Code: Select all

sudo grep 'IPV4-OF-YOUR-COMPUTER' /var/log/dovecot.log | grep 'Password'
Find your IPv4 on https://www.whatismyip.com/

Or you can turn off fail2ban service:

Code: Select all

sudo systemctl stop fail2ban

sppa
Posts: 14
Joined: Mon Jun 29, 2020 12:08 pm
Re: Firewall is blocking my IP, blocking emails receiving

Post by sppa »

I have over 30 log records saying this --> Apr 24 17:06:09 auth: Info: passwd-file([email protected] address.gr ,xxx.xxx.x55.120,<randompassword>): Password mismatch
I just reset the password for the email and i am still getting this, i am starting to think its a security issue ?

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myVesta
Site Admin
Posts: 574
Joined: Fri Jun 19, 2020 9:59 am
Re: Firewall is blocking my IP, blocking emails receiving

Post by myVesta »

If it is your IP, you probably have some mobile phone, tablet, or computer, configured to access the email, but with wrong password (old password probably).

If you see IP that is not yours, well, that's normal, bots that do brute-force guessing passwords are everywhere... there are maybe million bots... scanning all servers... that's why we use fail2ban, to ban them.

sppa
Posts: 14
Joined: Mon Jun 29, 2020 12:08 pm
Re: Firewall is blocking my IP, blocking emails receiving

Post by sppa »

Yes its my ip, so i will have to check my devices! thanks in advance and keep up the good work!

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myVesta
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Posts: 574
Joined: Fri Jun 19, 2020 9:59 am
Re: Firewall is blocking my IP, blocking emails receiving

Post by myVesta »


sppa
Posts: 14
Joined: Mon Jun 29, 2020 12:08 pm
Re: Firewall is blocking my IP, blocking emails receiving

Post by sppa »

Thank you very much!


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