April 2017 - dovecot - dovecot.org

Pigeonhole / Bug with "duplicate" ?
by Gilles Chauvin 28 Apr '17

28 Apr '17

Hello, Previously, while running Dovecot 2.2.27/Pigeonhole 0.4.16 the following code snippet was working as one would expect: if duplicate { addflag ["\\seen", "Duplicate"]; fileinto "Duplicate"; stop; } if address :contains "to" "user.email(a)example.com" { addflag "$label1"; } After upgrading to Dovecot 2.2.29.1/Pigeonhole 0.4.18 it's not working anymore. When an e-mail is sent to the user the "$label1" isn't applied at all to the message (in the case it's NOT a duplicate). Downgrading to Dovecot 2.2.29.1/Pigeonhole 0.4.17 exposes the same incorrect behaviour. Downgrading to Dovecot 2.2.29.1/Pigeonhole 0.4.16 is OK. When running pigeonhole 0.4.17 & 0.4.18, commenting the "if duplicate {}" block restores the expected behaviour. Looks like a bug that appeared in 0.4.17? Am I correct? Kind regards, Gilles.

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[BUG] OpenSSL function has been deprecated
by Peter van der Does 26 Apr '17

26 Apr '17

In src/lib-ssl-iostream/iostream-openssl-params.c a call is made to DH_generate_parameters. This function has been deprecated since OpenSSL 0.9.8. With OpenSSL 1.1 compilation will throw an error. Not sure how to send patches, I don't even know if the patch I wrote actually works (I don't program in C, but gave it a shot anyway) but below is the patch. --- a/src/lib-ssl-iostream/iostream-openssl-params.c +++ b/src/lib-ssl-iostream/iostream-openssl-params.c @@ -13,13 +13,21 @@ generate_dh_parameters(int bitsize, buffer_t *output, const char **error_r) { DH *dh; unsigned char *p; - int len, len2; + int len, len2, success; +#if OPENSSL_VERSION_NUMBER >= 0x00908000L + success = DH_generate_parameters_ex(dh, bitsize, DH_GENERATOR, NULL); +#else dh = DH_generate_parameters(bitsize, DH_GENERATOR, NULL, NULL); if (dh == NULL) { + success = 0; + } +#endif + + if (success == 0) { *error_r = t_strdup_printf( - "DH_generate_parameters(bits=%d, gen=%d) failed: %s", - bitsize, DH_GENERATOR, openssl_iostream_error()); + "DH_generate_parameters(bits=%d, gen=%d) failed: %s", + bitsize, DH_GENERATOR, openssl_iostream_error()); return -1; } -- If anybody knows the instruction on how to send patches, please let me know and I follow those instructions. Regards, Peter van der Does

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Problems with Dovecot to mysql socket with SELinux
by Robert Moskowitz 26 Apr '17

26 Apr '17

Anyone here running Dovecot connecting to mysql through the mysql.sock with SELinux enabled? I am getting access errors that go away when I put SELinux in permissive mode. I cannot find any direct help on this. Most howtos say to disable SELinux; they just don't want to bother, and in part I can see that. I have tried making a policy with allow2access and I get really bad SELinux errors with that. So I am looking to see if anyone else is running this combination? thanks

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V1 Dovecot POP3 index migrate to V3
by Umut Arus 26 Apr '17

26 Apr '17

Hi, I've very old Dovecot version so I'm trying to migrate new disk and current version of dovecot. But POP3 accounts have "version 1" .INBOX/dovecot-uidlist files so clients download the messages again. How can achieve not to download to mailbox after copy to new disk? Is there any script or something to migrate index v1 to v3? thanks for your suggestions.

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error ssl stacked error routines
by Poliman - Serwis 26 Apr '17

26 Apr '17

Hi I have configured one line in postfix main.cf (after configure each line I check /var/log/mail.err): smtpd_tls_dh1024_param_file = /etc/postfix/dh2048.pem After setup above line I have error in above log file (these 4 lines looped): Apr 25 14:08:09 serwer-1 dovecot: imap-login: Error: SSL: Stacked error: error:140760FC:SSL routines:SSL23_GET_CLIENT_HELLO:unknown protocol Apr 25 14:08:09 serwer-1 dovecot: imap-login: Error: SSL: Stacked error: error:1408A10B:SSL routines:ssl3_get_client_hello:wrong version number Apr 25 14:08:51 serwer-1 dovecot: imap-login: Error: SSL: Stacked error: error:1408F119:SSL routines:SSL3_GET_RECORD:decryption failed or bad record mac Apr 25 14:08:51 serwer-1 dovecot: imap-login: Error: SSL: Stacked error: error:1408A0C1:SSL routines:ssl3_get_client_hello:no shared cipher Apr 25 14:14:25 serwer-1 dovecot: pop3-login: Error: SSL: Stacked error: error:1408A0C1:SSL routines:ssl3_get_client_hello:no shared cipher Apr 25 14:10:51 serwer-1 dovecot: pop3-login: Error: SSL: Stacked error: error:14094085:SSL routines:ssl3_read_bytes:ccs received early Apr 25 14:09:16 serwer-1 dovecot: imap-login: Error: SSL: Stacked error: error:1408A0E3:SSL routines:ssl3_get_client_hello:parse tlsext And second thing: smtpd_sasl_security_options=noanonymous,noplaintext smtpd_sasl_tls_security_options=noanonymous,noplaintext These two lines in main.cf postfix file generate error no SASL authentication method. What should be configured in Dovecot to avoid both problems? -- *Pozdrawiam / Best Regards* *Piotr Bracha* *tel. 534 555 877* *serwis(a)poliman.pl <serwis(a)poliman.pl>*

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Issue with POP3s TLS/SSL on port 995 on Outlook 2016
by Bhushan Bhosale 26 Apr '17

26 Apr '17

Dear Team, I'm facing issue with POP3s TLS/SSL on port 995 only for outlook2016. It's working fine with dovecot v2.2.28 on test environment. Is the dovecot v2.2.28 is stable released? I can upgrade the version from v2.1.17 to v2.2.28 on production if its stable version. Kindly confirm and provide the proper solution. Thanks and Regards, Bhushan Previous Mail:==========I have faced issue with email downloading in the email client by using pop3s SSL port 995 in dovecot v2.1.17 for outlook client 2016 on production environment. As per my troubleshooting on my test environment, I have upgraded dovecot version v2.2.28, and changed paramer "ssl_dh_parameters_length = 2048" and "verbose_ssl = yes", The issue seems to be resolved in dovecot v2.2.28. What can i do to resolve this issue in dovecot v2.1.17? Kindly help.

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building Dovecot in Debian 9
by KT Walrus 26 Apr '17

26 Apr '17

I’m trying to build Dovecot 2.2.29.1 in a Docker container today and have the following error in ./configure: checking for shadow.h... yes checking for pam_start in -lpam... no checking for auth_userokay... no checking for mysql_config... mysql_config checking for mysql_init in -lmysqlclient... no configure: error: Can't build with MySQL support: libmysqlclient not found #> find / -name libmysqlclient\* /usr/share/doc/libmysqlclient20 /usr/share/lintian/overrides/libmysqlclient20 /usr/lib/x86_64-linux-gnu/libmysqlclient.so.20.3.5 /usr/lib/x86_64-linux-gnu/libmysqlclient.so.20 /var/lib/dpkg/info/libmysqlclient20:amd64.triggers /var/lib/dpkg/info/libmysqlclient20:amd64.shlibs /var/lib/dpkg/info/libmysqlclient20:amd64.list /var/lib/dpkg/info/libmysqlclient20:amd64.md5sums I have installed MySQL 5.7.18 Debian 9 packages (including the libmysqlclient-dev package) from the MySQL repo. I’m not an expert, but is there a bug in the "./configure --prefix=/usr --sysconfdir=/etc --with-mysql”? I’ve been building Dovecot with this Dockerfile using Ubuntu 16.04 for a while now without issue. Do I need some extra ./configure option to get it to find libmysqlclient.so.20? Kevin

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Streaming out?
by Michael Segel 26 Apr '17

26 Apr '17

Hi, Has anyone tried to write out a mail stream to Kafka? Are there any good write ups on this feature? Can you split the mail so that you still write to a MailDir and also write to a stream? Thx -Mike

1 0

fts error recovery
by Daniel Miller 25 Apr '17

25 Apr '17

When a message is received, that is supposed to be added to the fts index, and an fts error occurs (like the Solr server is offline for some reason) - Dovecot logs that error and stores the message. Later, the fts system is available and new messages are added to the fts index without issue. Will the "missed" messages get added? Or would this require a manual re-indexing? -- Daniel

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namespace alias issues?
by Kelsey Cummings 25 Apr '17

25 Apr '17

The Courier IMAP backwards compatibility section in the Namespaces wiki suggests that hidden aliased namespace can cause problems for some clients but doesn't quantify the extent or likelihood of running into these problems. Does anyone with real world experience with similar configurations have any feedback? -- kelsey.cummings(a)sonic.com sonic.net, inc. System Architect 2260 Apollo Way 707.522.1000 Santa Rosa, CA 95407

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