RE: Spammer rejected, but resends every 10 minutes. Any way to prevent this

Or why not use and SPF like this in the dns. your.domain.tld TXT “v=spf1 -exists:%{ir}.zen.spamhaus.org +mx -all exp:explain.your.domain.tld” explain.your.domain.tld TXT "SPF error %{i} is not one of %{d}’s designated mail servers.” Now these never reaches your server, saving cpu cy

Re: Spammer rejected, but resends every 10 minutes. Any way to prevent this

On 14 Mar 2018, at 6:28 (-0400), L.P.H. van Belle wrote: Or why not use and SPF like this in the dns. your.domain.tld TXT “v=spf1 -exists:%{ir}.zen.spamhaus.org +mx -all exp:explain.your.domain.tld” explain.your.domain.tld TXT "SPF error %{i} is not one of %{d}’s designated mail servers.”

Re: Not receiving mail from some legitimate domains

Alright, using postconf debug_peer_list appears to have identified the issue: Mar 14 14:03:10 enceladus postfix/smtpd[26760]: > n5.nabble.com[162.253.133.81]: 250-enceladus..net Mar 14 14:03:10 enceladus postfix/smtpd[26760]: > n5.nabble.com[162.253.133.81]: 250-PIPELINING Mar 14 14:03:10 enceladu

Re: Not receiving mail from some legitimate domains

On 14.03.18 07:55, jlftl wrote: Alright, using postconf debug_peer_list appears to have identified the issue: Mar 14 14:03:10 enceladus postfix/smtpd[26760]: < n5.nabble.com[162.253.133.81]: MAIL FROM: SIZE=3488 Mar 14 14:03:10 enceladus postfix/smtpd[26760]: > n5.nabble.com[162.253.133.81]: 530

Re: Not receiving mail from some legitimate domains

> On Mar 14, 2018, at 11:06 AM, Matus UHLAR - fantomas > wrote: > > 1. there's no need to configure the same option in master.cf than in the > main.cf, it's required when you want to change them. > > 2. submission and smtps SHOULD have "-o smtpd_tls_security_level = encrypt", > clients should

Re: Not receiving mail from some legitimate domains

Matus UHLAR - fantomas wrote > On 14.03.18 07:55, jlftl wrote: >>Alright, using postconf debug_peer_list appears to have identified the issue: >> >>Mar 14 14:03:10 enceladus postfix/smtpd[26760]: < >>n5.nabble.com[162.253.133.81]: MAIL FROM:< > bounces@.nabble > > SIZE=3488 >>Mar 14 14:03:10 ence

Re: local data error while talking to smtp

Hi everyone the error is in the my.cnf with the following parameter: init_connect='SET wait_timeout = 30' Thanks! -- Sent from: http://postfix.1071664.n5.nabble.com/Postfix-Users-f2.html

Which user lookup wins?

When postfix checks for a local user it looks at any local user (like /home/fred), I assume by checking /etc/passwd or similar (I have local users who can receive mail who are not mentioned in any /etc/postfix/* file, so postfix knows about them from somewhere outside of postfix’s config file) a

Re: Which user lookup wins?

@lbutlr: > When postfix checks for a local user it looks at any local user (like = > /home/fred), I assume by checking /etc/passwd or similar (I have local = > users who can receive mail who are not mentioned in any /etc/postfix/* = > file, so postfix knows about them from somewhere outside of post

Re: question about envelop from.

Too complicated? How could this be improved? smtp_dns_support_level = dnssec smtp_tls_security_level = dane smtp_tls_ciphers = high smtp_tls_exclude_ciphers = DES, MD5, RC2, RC4, RC5, IDEA, SRP, PSK, aDSS, kECDhe, kECDhr, kDHd, kDHr, SEED, LOW, EXPORT smtp_tls_mandatory_protocols = !SSLv2, !SSL

Re: question about envelop from.

> On Mar 14, 2018, at 10:48 PM, John wrote: > > smtp_dns_support_level = dnssec > smtp_tls_security_level = dane Fine. > smtp_tls_ciphers = high OK, but medium is perhaps sufficient. > smtp_tls_exclude_ciphers = DES, MD5, RC2, RC4, RC5, IDEA, SRP, PSK, aDSS, > kECDhe, kECDhr, kDHd, kDHr, S

Re: Which user lookup wins?

On 14 Mar 2018, at 18:14, Wietse Venema wrote: > The Postfix SMTP server always looks in virtual_alias_maps. Oh good, that makes things easier. > I suggest that you look at > http://www.postfix.org/ADDRESS_CLASSS_README.html Thank you for the link, but I get "Not Found The requested URL /ADD