postfix/smtp Connection timeout

2019-06-04 Thread subscription1
Hi, I have two mail server configured the same way. A diff of the output of postconf -n shows only (expected) differences for inet_interfaces mydomain myhostname smtpd_banner smtpd_tls_cert_file smtpd_tls_key_file I can send emails from my clie

Re: How to reject mails where from address and to address is myself.

2019-06-04 Thread Richard James Salts
On Tuesday, 28 May 2019 9:19:09 PM AEST an...@ursc.gov.in wrote: > Dear List, > > Lot of SPAM mails are being received where from and to address is > myself and the mail has contents which are dirty/bad. > > The original sender id will be different. > > How to handle such mails. The best way is

Re: How to reject mails where from address and to address is myself.

2019-06-04 Thread Fernando Maior
Dear Anant, Systems architecture is your friend... I usually have the following servers: 1) E-mail firewall - a real/virtual computer, connected by one interface to the internet and by another interface to the local network, who only receives e-mail from outside, and don´t permit unwanted e-mail

Re: postfix/smtp Connection timeout

2019-06-04 Thread Wietse Venema
subscription1: > Jun? 4 17:21:11 mail postfix/smtp[11505]: connect to > mail1.zudiewiener.com[173.212.231.229]:25: Connection timed out Do the two mail servers run on different machines, each with a different IP address? Does 'telnet 173.212.231.229 25' work from both machines, or does it work

Fwd: Re: How to reject mails where from address and to address is myself.

2019-06-04 Thread Edouard Guigné
Hello, I am facing this kind of issue too. To stop this, I follow http://www.postfix.org/RESTRICTION_CLASS_README.html to restrict usage of list diffusion to local lan. Amavis and spamassassin are also installed on my mail system with postfix, but recently, spammers use image inside body of

Re: postfix/smtp Connection timeout

2019-06-04 Thread subscription1
The two servers are on different machines (different continents, actually) and different domains. I've sent an email to the same (non-existitent) recipient One the working server I get this --- Jun  4 14:06:50 mail1 postfix/submission/smtpd[13650]: connect from unknown[210.18

Re: postfix/smtp Connection timeout

2019-06-04 Thread Bill Cole
On 4 Jun 2019, at 8:23, subscription1 wrote: telnet on the working server shoews --- >>> telnet 203.205.219.57 25 Trying 203.205.219.57... Connected to 203.205.219.57. Escape character is '^]'. 220 newxmmxsza20.qq.com MX QQ Mail Server. ^] telnet> On the failing server I get -

Re: How to reject mails where from address and to address is myself.

2019-06-04 Thread Bill Cole
On 4 Jun 2019, at 8:00, Edouard Guigné wrote: Does reject_unauthenticated_sender_login_mismatch can help in this case ? None of the Postfix *_sender_* restrictions act on the contents of message headers. They act on the SMTP envelope sender address, which in this case is NOT the same address

Fwd: Re: How to reject mails where from address and to address is myself.

2019-06-04 Thread Edouard Guigné
Hello, My question was relative to the following problem : "Lot of SPAM mails are being received where from and to address is myself and the mail has contents which are dirty/bad." I ask if reject_unauthenticated_sender_login_mismatch can solve this issue Message transféré

Re: Fwd: Re: How to reject mails where from address and to address is myself.

2019-06-04 Thread Matus UHLAR - fantomas
On 04.06.19 11:05, Edouard Guigné wrote: My question was relative to the following problem : "Lot of SPAM mails are being received where from and to address is myself and the mail has contents which are dirty/bad." I ask if reject_unauthenticated_sender_login_mismatch can solve this issue the

Re: Fwd: Re: How to reject mails where from address and to address is myself.

2019-06-04 Thread Bernardo Reino
On Tue, 4 Jun 2019, Edouard Guigné wrote: My question was relative to the following problem : "Lot of SPAM mails are being received where from and to address is myself and the mail has contents which are dirty/bad." I ask if reject_unauthenticated_sender_login_mismatch can solve this issue A

Re: postfix/smtp Connection timeout

2019-06-04 Thread Wietse Venema
subscription1: > On the failing server I get > --- > >>> telnet 203.205.219.57 25 > Trying 203.205.219.57... This is no longer a Postfix question. You need to fix your network first. Wietse

postcat: invalid size record

2019-06-04 Thread Martin Mareš
Hello! Sometimes, I run into postcat failing with error message invalid size record: ... on genuine queue files saved with "dont_remove = 1". I think that the failures correlate with e-mails rejected by smtpd milter. postcat produces this error during processing a size record: if

Re: postfix/smtp Connection timeout

2019-06-04 Thread subscription1
Thanks. That was the problem Leo On 4/6/19 10:53 pm, Bill Cole wrote: On 4 Jun 2019, at 8:23, subscription1 wrote: telnet on the working server shoews ---  >>> telnet 203.205.219.57 25 Trying 203.205.219.57... Connected to 203.205.219.57. Escape character is '^]'. 220 newxmmxsza20.qq.com MX

Re: postcat: invalid size record

2019-06-04 Thread Wietse Venema
Martin Mare?: > Hello! > > Sometimes, I run into postcat failing with error message > > invalid size record: ... > > on genuine queue files saved with "dont_remove = 1". I think that > the failures correlate with e-mails rejected by smtpd milter. don't_remove is not a production feature;