i run it on my vps. location is germany
aaPanel Mail Server released on 13 June 2019
murataj07
please try again
I have 3 server centos, 2 installed on v 6.0.2, 1 installed on v 6.0.3
all of my server already update to v 6.0.3 (can't updated to v 6.0.4 because error said "failde to connect server")
and the mail server plugin, ONLY show up on v 6.0.3, and other 2 server which is firstly installed v 6.0.2 (upgraded tp v 6.0.3) didn't show up
Any suggestion,.?
Thanks
aaPanel_Jose it worked thank you!
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arkastudio
if you can't see this plugin click the Update App list Button on the App Store page
And let me check the Panel update error
aaPanel_Jose
Thanks for quick reply Jose,
I've already clicked Update App List
2 installed on v 6.0.2 (upgraded to v 6.0.3) <-- Still not show up , 1 installed on v 6.0.3 <-- Show up
Where to check the panel update error,.?
arkastudio
Wait a moment, I am checking
aaPanel_Jose
FYI : 2 VPS located in Singapore (Not Show up the mail plugin) and 1 in USA using Digital Ocean,. And all 3 of it can't update to v 6.0.4
arkastudio
Check the panel to cloud server network is unstable
Try to click the fix button on a machine that cannot be updated. The fix and update effects are the same.
aaPanel_Jose
Already clicked 3 link on the right top, but nothing changed,..
Maybe its time to re-install,.. 
- Edited
arkastudio
Can I check it in your panel? If you allow, please send the account password and login url to zhwyeah@gmail.com, thank you
If not, you can use the install command to overwrite the installation of the panel once, you can achieve an upgrade.
aaPanel_Jose Account Sent to your email Jose,.. Thanks anyway,.
arkastudio
Ok, let me check it out.
arkastudio
Update compie and the mail server is alreay show
Is the problem of network instability
Yup,.. Thank you very much, it working like charm,,...
Can you tell me how to solve this, except of waiting the network stable,. So I can solve other server by myself,... 
arkastudio
The network is unstable. . . It may be normal after a while, if you ping www.bt.cn on the serve has response indicating that the network is normal.
aaPanel_Jose If not, you can use the install command to overwrite the installation of the panel once, you can achieve an upgrade.
Just Trying this solution, it solved the problem either,... Thanks Jose,...
@aaPanel_Jose will be MailServer supported by Ubuntu ?
KristianP
If there are many ubuntu users, will consider compatibility.
- Edited
Got an error while installing (fresh panel)
Centos VM 7.6.1810, aaPanel 6.0.4
Server location: Russia
any way i can fix it myself?
P.S. logs show nothing about installing mail server