Questions about SSL for outgoing emails

the email incase the receipt certificate is untrusted or self signed? Many thanks Michael Peter

Question about smtp_tls_CAfile

when sending emails to them. This makes me more confused.. Please advise your opinion.. Many thanks Michael Peter

Re: Question about smtp_tls_CAfile

> Michael Peter: >> This makes me more confused.. >> Please advise your opinion.. > Please post your configration as requested in the welcome message. > wietse I have posted my configuration as per your request.. and i summarize my questions again as follow I have

Re: Question about smtp_tls_CAfile

> On Fri, Sep 25, 2015 at 06:16:10PM +0300, Michael Peter wrote: > >> I have configured postfix to check CAfile which contains only Godaddy >> root >> certificate as follow for outgoing emails. >> >> smtp_tls_CAfile = /etc/certs/go-daddy-root-ca.crt > > Wh

Re: Question about smtp_tls_CAfile

> On Fri, Sep 25, 2015 at 07:21:32PM +0300, Michael Peter wrote: > >> > What version of Postfix are you using? >> >> postfix/master[7500]: reload -- version 2.6.6, configuration >> /etc/postfix > > That's nearly seven years old. When you enable th

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domain.com is bcc to "manger" but all emails comes from subdomain ie (sub.domain.com) is not forwarded to "manager" how can we configure postix to sender_bcc emails from domain and its subdomain as well ? Any ideas? Michael Peter

Question about permit_mynetworks option

rver (when the primary server was down) ? or still the secondary server can send the pending emails to the primary server even if permit_mynetworks in not written in the smtpd_recipient_restrictions? Thanks Michael Peter

Question about postfix logfile

Hi, I have question about postfix logfile (/var/log/maillog), Does The log mention the "from email header" or the "return-path email header" in the log file ? Jun 16 16:17:43 mailhost postfix/qmgr[12095]: CB992123F1B1: from=, size=2639, nrcpt=1 (queue active) Example: Return-Path: From: Becau

Re: Question about permit_mynetworks option

> On 6/16/2015 10:16 AM, Michael Peter wrote: >> Hi, >> >> I have couple of questions regarding the permit_mynetworks option. > > It's generally better to control the scope of mynetworks rather than > removing permit_mynetworks. Rather than the entire netwo

Re: Question about postfix logfile

> On 6/16/2015 10:21 AM, Michael Peter wrote: >> Hi, >> >> I have question about postfix logfile (/var/log/maillog), Does The log >> mention the "from email header" or the "return-path email header" in the >> log file ? >> >> Ju

Re: Question about postfix logfile

> On 6/16/2015 11:53 AM, Michael Peter wrote: >>> On 6/16/2015 10:21 AM, Michael Peter wrote: >>>> Hi, >>>> >>>> I have question about postfix logfile (/var/log/maillog), Does The log >>>> mention the "from email header" or th

Empty sender question

Hi, I understand that postfix send bounces or failed delivered notifications using empty sender. But does postfix accept empty sender emails during the MAIL FROM command during the SMTP conversation? because i think that postfix needs a valid email address ? if postfix reject empty sender emails

Block mail servers with no reverse dns entries

Hi, How can force postfix to reject emails from mail servers which doesn't have a reverse dns entry ? and is this correct thing to do according to the standards? Thank you. Michael Peter

Question about DSN

is says that 2.6.0 means undelivered error... So i am confused if DSN=2.6.0 means that the email is accepted without problems? and why the receipt mail server is giving 2.6.0INSTEAD of 2.0.0 ?? why receipt server would give DSN2.6.0 ? I appreciate your feedback. Thanks Michael Peter

Content filter then transport maps

go through content filter, then go through transport maps ? or in this case the email will go through content filter and ignore transport maps ? Thank you Michael Peter

Questions about reject_unknown_sender_domain

Hi, reject_unknown_sender_domain Reject the request when Postfix is not final destination for the sender address, i am confused that is the meaning "when postfix is not final destination for the sender address" ? so for example if the sender address is send...@example.com. and the receipt addres

max connection for inbound/outbound smtp

Hi, master.cf smtp inet n - - - 100 smtpd I understand that the default concurrent simultaneous incoming smtp connections is 100? but what about outgoing smtp connections to remote smtpd servers? how many connections postfix can establish for outgoing emails t

Re: max connection for inbound/outbound smtp

Thank you very much for your reply, please find my comments below. > Michael Peter: > [ Charset ISO-8859-1 converted... ] >> Hi, >> >> master.cf >> smtp inet n - - - 100 smtpd >> >> I understand that the def

Question about Postfix Stress

question is how long the time that the stress behaviour continue to be activated after current processes connections has decreased than the max process connections limit I have read he documentations and searched alot but i couldn't find an answer... Thank you. Michael Peter