Both Roundcube and Squirrelmail webmail cannot search for anything + cannot open many emails because there are more than 200,000 emails in my Inbox

Subject: Both Roundcube and Squirrelmail webmail cannot search for anything + cannot open many emails because there are more than 200,000 emails in my Inbox

Good day from Singapore,

I am using Virtualmin/Webmin web hosting control panel in my Virtual Private Servers (VPS) in Germany.

[1st issue]

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Both Roundcube and Squirrelmail webmail cannot search for anything because there are more than 200,000 emails in my Inbox.

Roundcube webmail doesn't show any error. Search results simply don't show up after a long time.

However, I got the following error in Squirrelmail webmail (using Firefox web browser).

ERROR: Connection dropped by IMAP server.

Query: SEARCH CHARSET ISO-8859-1 ALL SUBJECT "keyword"

[2nd issue]

============

Both Roundcube and Squirrelmail webmail cannot open many emails because there are more than 200,000 emails in my inbox.

Roundcube webmail gives the following error:

SERVER ERROR!

Could not load message from server.

Squirrelmail webmail gives the following error:

ERROR: Connection dropped by IMAP server.

Query: FETCH 1 BODY[HEADER]

My IMAP server is Dovecot version 2.2.36.

Virtualmin version is 6.17.

Webmin version is 1.990.

Usermin version is 1.834.

Authentic theme version is 19.85.1.

However, using Samsung Email app on my Samsung Galaxy A32 5G Android phone, I am able to open emails it seems. Only Roundcube and Squirrelmail webmail appears to have issues opening emails. Using Samsung Email app, I have deleted around 6,000 useless emails so far but still unable to search and open emails. Looks like I need to delete more and more useless emails.

How do I solve the above problems?

I am looking forward to your reply.

Thank you very much.

Mr. Turritopsis Dohrnii Teo En Ming, 44 years old as of 17 April 2022 Sunday, is a TARGETED INDIVIDUAL living in Singapore. He is an IT Consultant with a Systems Integrator (SI)/computer firm in Singapore. He is an IT enthusiast.

REFERENCES

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[1] https://dovecot.org/pipermail/dovecot/2022-April/124504.html

[2] https://www.mail-archive.com/dovecot@dovecot.org/msg85943.html

[3] https://markmail.org/search/?q=teo%20en%20ming#query:teo%20en%20ming%20order%3Adate-backward+page:1+mid:ierxqe4k25abqkgd+state:results