Re: Need help with smtp_tls_policy_maps settings.

On 18/2/22 22:07, Noel Jones wrote: No. The docs say the table is not searched by hostname — Noel Jones Noted. Thank you for the reply. P.V.Anthony

Re: Need help with smtp_tls_policy_maps settings.

On 19/2/22 00:19, Wietse Venema wrote: I meant net/mask. For examples, see https://www.postfix.org/cidr_table.5.html Wietse Thank you for the link. Saved me much time. P.V.Anthony

Re: Need help with smtp_tls_policy_maps settings.

about specifying net/masl form. Once again thank you for helping. P.V.Anthony

Re: Need help with smtp_tls_policy_maps settings.

? P.V.Anthony

Re: Need help with smtp_tls_policy_maps settings.

smtpd_discard_ehlo_keyword_address_maps =   cidr:/etc/postfix/discard_ehlo_keyword_map.cidr # /etc/postfix/discard_ehlo_keyword_map.cidr 216.109.104.12  starttls   -- Noel Jones Thank you very much for the reply and for the advice. I will try it out and report back. P.V.Anthony

Need help with smtp_tls_policy_maps settings.

correct? Is there any other settings that need to be done. P.V.Anthony

Re: postfix.org site CSS change

is set to 50%, it's exactly half and half. if set to 100 percent, the scree usually does not flicker at all, staying on all the time). Thank you for this sharing. I will lookout for flicker free monitors for my next purchase. P.V.Anthony

Re: incoming email SSL errors for only some domains.

allowed. P.V.Anthony

Re: incoming email SSL errors for only some domains.

On 27/4/21 02:53, P.V.Anthony wrote: Getting ssl errors for some incoming email domains. Currently using Postfix version: 3.3.1 Centos 8 I did not give more details of the problem earlier. Here is the log. I really need some advice on how to solve this. The only way to get the emails

incoming email SSL errors for only some domains.

Hi, Getting ssl errors for some incoming email domains. Is there a setting in postfix where we can set like smtp_tls_policy_maps but for incoming domains instead of outgoing domains? Currently using Postfix version: 3.3.1 Centos 8 P.V.Anthony

Re: Receiving domain only hase MX records and no A records.

t it works but not sure why it did not work in the first place and why it works now. Once again thank you all for replying and helping. The help has been really valuable. P.V.Anthony

Re: Receiving domain only hase MX records and no A records.

right path to check and test. Saved me much time and effort. Thank you for the advice. I really do appreciate it. P.V.Anthony

Re: Receiving domain only hase MX records and no A records.

On 18/11/20 13:05, Ahsan Khan wrote: Does the Postfix server able to query the MX records Yes the postfix server can query the MX records. So the dns part in the server is good. Is there any other things that I can test? Or some configuration that needs to be changed? P.V.Anthony

Receiving domain only hase MX records and no A records.

or records. Postfix is not allowing to send emails to schools.gov.sg. What configuration should be done to make postfix send emails to schools.gov.sg? Is A or records needed for a domain to receive emails? Would just MX records be enough? -- P.V.Anthony

Re: Advice: NFS, hardware, SATA vs SAS etc

. Best of both worlds. Is this ok? P.V.Anthony

Re: reject_unknown_sender_domain seems not to work

version can support reject_unknown_sender_domain. I am not an expert. Please wait for other advice. P.V.Anthony

Re: Is it compulsory for an outgoing smtp server to have FQDN.

were from spammer sites and private-space domains (like .local). Thank you all for replying. The answer are useful. I will inform them about this. P.V.Anthony smime.p7s Description: S/MIME Cryptographic Signature

Is it compulsory for an outgoing smtp server to have FQDN.

; udp: 512 ;; QUESTION SECTION: ;DD1HMALT02.hmail.sg. IN A ;; AUTHORITY SECTION: hmail.sg. 899 IN SOA pridns.hmail.sg. hostmaster. 205 900 600 86400 900 ;; Query time: 14 msec ;; SERVER: 8.8.8.8#53(8.8.8.8) ;; WHEN: Wed Nov 15 23:43:43 +08 2017 ;; MSG SIZE

Re: need little help with DKIM, if possible.

Private-key. The receiving party's smtp server will check the dkim signature header in the email with the one in the txt dns entry of default._domainkey.mindmedia.com.sg. If it verify, then dkim has passed. This is my understanding. I hope this helps. P.V.Anthony smime.p7s Description: S/MIME Cryptographic Signature

Re: The "from" header looks like paypal but it is coming from somewhere else.

On 11/02/2017 10:38, /dev/rob0 wrote: This appears to be from Mailchimp, so reporting it as abuse is likely to yield some satisfactory results. Thanks to everyone for the advice. P.V.Anthony smime.p7s Description: S/MIME Cryptographic Signature

Re: Blocking users sending spam

MPDIFF(HOUR, FROM_UNIXTIME(LastUpdate), CURRENT_TIMESTAMP()) <= 1 order by counter desc;" | mysql --user=databaseuser --password=password database P.V.Anthony smime.p7s Description: S/MIME Cryptographic Signature

Re: Webmin with Postfix: recommended or not.

On 03/27/2016 08:34 PM, Tom Browder wrote: Wow, you must be having a bad day! I hope you feel better soon. Dear Tom, I like the way you have replied. I should learn and practice your way. P.V.Anthony smime.p7s Description: S/MIME Cryptographic Signature

Re: Outbound throttling feature

-- P.V.Anthony smime.p7s Description: S/MIME Cryptographic Signature

Re: Exception for authenticated user when using reject_authenticated_sender_login_mismatch.

on centos 6 currently. Once again thank you both for helping out. -- P.V.Anthony smime.p7s Description: S/MIME Cryptographic Signature

Re: Exception for authenticated user when using reject_authenticated_sender_login_mismatch.

k you again for offering to help. -- P.V.Anthony smime.p7s Description: S/MIME Cryptographic Signature

Exception for authenticated user when using reject_authenticated_sender_login_mismatch.

Is there some other check__access that checks the authenticated user? -- P.V.Anthony smime.p7s Description: S/MIME Cryptographic Signature