Sieve is enabled in Dovecot on my Ubuntu server. However, I’m seeing the following recurring error in the mail logs:
Error: Couldn't load required plugin /usr/lib/dovecot/modules/lib90_sieve_plugin.so: dlopen() failed: /usr/lib/dovecot/modules/lib90_sieve_plugin.so: undefined symbol: mail_deliver_ctx_get_log_var_expand_table
I’ve already tried reinstalling the Dovecot and related packages (including dovecot-core and dovecot-sieve), but the issue persists.
Has anyone encountered this error before? Could this be a version mismatch between Dovecot and the Sieve plugin? Any advice on how to resolve this would be greatly appreciated.
| SYSTEM INFORMATION | |
|---|---|
| OS type and version | Ubuntu 24.04.2 LTS |
| Webmin version | 2.303 |
| Virtualmin version | 7.30.8 |
| Webserver version | 2.4.58 |
| Dovecot | 2.3.21 |