Issue Email Server failure every day

[JogoVogo]

Try,

edit /etc/systemd/system.conf and set (uncomment) the value to:
DefaultTasksMax=65535

+

https://support.plesk.com/hc/en-us/articles/115002576709--Warnings-in-var-log-maillog-on-Plesk-server-client-limit-is-lower-than-required-under-max-load

 

[Maarten]

Did you check the limits of the dovecot user?

# cat /proc/`pidof dovecot`/limits

 

[httPete]

thanks for your reply.

Try,

edit /etc/systemd/system.conf and set (uncomment) the value to:
DefaultTasksMax=65535

+

https://support.plesk.com/hc/en-us/articles/115002576709--Warnings-in-var-log-maillog-on-Plesk-server-client-limit-is-lower-than-required-under-max-load

Can you explain me what it does?

cat /proc/`pidof dovecot`/limits

This ist the output.

# cat /proc/`pidof dovecot`/limits
Limit                     Soft Limit           Hard Limit           Units     
Max cpu time              unlimited            unlimited            seconds   
Max file size             unlimited            unlimited            bytes     
Max data size             unlimited            unlimited            bytes     
Max stack size            8388608              unlimited            bytes     
Max core file size        0                    unlimited            bytes     
Max resident set          unlimited            unlimited            bytes     
Max processes             62987                62987                processes
Max open files            65535                65535                files     
Max locked memory         67108864             67108864             bytes     
Max address space         unlimited            unlimited            bytes     
Max file locks            unlimited            unlimited            locks     
Max pending signals       1545091              1545091              signals   
Max msgqueue size         819200               819200               bytes     
Max nice priority         0                    0                   
Max realtime priority     0                    0                   
Max realtime timeout      unlimited            unlimited            us

 

[Sunilkumar]

Good morning,
i have some trouble with my virtual server at Strato. Pleks Email is going down every day.
Ubuntu 20.04, 32GB Ram, 1000GB SSD.
When you go to webmail via Roundcube, the server has a 403 after the login.
To fix the problem it is enough to go to Email Server Options in Plesk and press ok.
I had never such trouble with my older server.
May be someone can help?

Talk to your webmail service provider

 

[mow]

Talk to your webmail service provider

Are you sure you know what Plesk is?

 

[Sunilkumar]

Are you sure you know what Plesk is?

Yes, I am sure