Does send email creates any performance issue ?

[Sri charan Thota]

Hi Team,
Good Morning,
I hope you are doing good and safe.

We would like to upgrade our Jira from 8.4.1 to 8.5.9. For this we need to send an intimation / notification to the key users in Jira like all the administrators to every project.
I saw the feature of 'send email' which is designed to send the notification about the events like maintenance and downtimes. Using this function I would like to send notification to the users under administrators of every project in Jira.
My query is
Does this action makes jira server / mail server slow down the performance?
Can we know the number of users that are getting notified before sending ?
Is there any Idea of knowing number of users under project administrator rule ?

Please clear my queries asap and let me know if you need any information from my end.

Thanks,
Sri Charan

[Alexander Pappert]

since jira sends mail all times, there should be no countable performance issue if you sent out a mail 1 times manually to your admins.

in user admin, you should be able to filter who is in your admin group and get the number

[Daniel Ebers]

There should be absolutely no problem by using the function as you described and as Alexander said.

There is one troubleshooting document which refers to a possible performance degradation by sending mail - but only as long as debugging is enabled (from the logic: in that case log files must be written to disk):
https://confluence.atlassian.com/jirakb/troubleshoot-notifications-in-jira-203394737.html

In a different document which I cannot find right now it was mentioned that mail CAN have an effect on Jira overall performance - but this rather refers to cases when tons and tons (probably thousands in short intervals) of mails are to be delivered.
I believe that this is visible in monitoring if it comes to such a case - but that is pretty independent from your initial question.

To be on the safe side you could talk to your mail server administrator if he/she sees any problems with the amount of notifications coming.

Apart from that I also see no issues doing so.

Cheers,
Daniel