Unable to open file /etc/dovecot/ssl/dovecot.crt? We can help you.

As part of our Server Management Services, we assist our customers with several similar queries.

Today, let us see procedure followed by our Support Techs in order to perform this task.

Unable to open file /etc/dovecot/ssl/dovecot.crt

Dovecot is an open-source IMAP and POP3 server for Unix-like operating systems, written primarily with security in mind.

Dovecot is among the best performing IMAP servers while still supporting the standard mbox and Maildir formats.

It can work with standard mbox, Maildir, and its own native high-performance dbox formats.

It is fully compatible with UW IMAP and Courier IMAP servers’ implementation of them, as well as mail clients accessing the mailboxes directly.

Dovecot also includes a mail delivery agent (called Local delivery agent in Dovecot’s documentation) and an LMTP server, with optional Sieve filtering support.

Dovecot supports a variety of authentication schemas for IMAP, POP and message submission agent (MSA) access, including CRAM-MD5 and the more secure DIGEST-MD5.

Today, let us discuss about the simple workaround given by our Support Techs to resolve it.

The following will allow those emails to be visible in webmail.

cp -ax /var/cpanel/templates/dovecot2.3/main.default /var/cpanel/templates/dovecot2.3/main.local

Then, modify /var/cpanel/templates/dovecot2.3/main.local and edit this section

[%- IF protocol_imap.imap_capability.defined %]
imap_capability = [% protocol_imap.imap_capability %]
[%- ELSE %]
#imap_capability =
[%- END %]

to instead be

[%- IF protocol_imap.imap_capability.defined %]

imap_capability = "IMAP4rev1 SASL-IR LOGIN-REFERRALS ID ENABLE IDLE SORT SORT=DISPLAY THREAD=REFERENCES THREAD=REFS THREAD=ORDEREDSUBJECT MULTIAPPEND URL-PARTIAL CATENATE UNSELECT CHILDREN NAMESPACE UIDPLUS LIST-EXTENDED I18NLEVEL=1 CONDSTORE QRESYNC ESEARCH ESORT SEARCHRES WITHIN CONTEXT=SEARCH LIST-STATUS MOVE"
# imap_capability = [% protocol_imap.imap_capability %]
[%- ELSE %]
#imap_capability =
[%- END %]

Then, run the following commands:

/scripts/builddovecotconf
/scripts/restartsrv_dovecot

[Need help with similar query? We’d be glad to assist you]

Conclusion

In short, today we saw steps followed by our Support Techs resolve error which makes you can’t open file /etc/dovecot/ssl/dovecot.crt.