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Postfix / Re: unable to change port 25 to 587 in postfix
« on: April 22, 2020, 12:40:19 PM »and hence changing port will not enable mail sending too.
thanks for your reply Sandeep however, the port 587 is open and I checked the same using Telnet. I get the response
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220 <FQDN> ESMTP Postfix
EHLO <FQDN>
250-<FQDN>
250-PIPELINING
250-SIZE 204800000
250-ETRN
250-STARTTLS
250-ENHANCEDSTATUSCODES
250-8BITMIME
250-DSN
250 CHUNKING
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Postfix / Re: unable to change port 25 to 587 in postfix
« on: April 22, 2020, 12:35:47 PM »If port 25 is blocked by your ISP, your mail server will NEVER work properly. 25 is the server to server communication by default. Hence why you shouldn't try hosting a server on a home network connection.
Understood but what can be the alternate to this problem?
As Port 25 is blocked but the Port 587 is open as I could check it through Telnet. Also, spoke to my ISP and as per them I can use 587. But still the mails are not working even after routing them through 587 port.
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Postfix / Re: unable to change port 25 to 587 in postfix
« on: April 22, 2020, 11:26:44 AM »If port 25 is blocked by your ISP, your mail server will NEVER work properly. 25 is the server to server communication by default. Hence why you shouldn't try hosting a server on a home network connection.
Understood but what can be the alternate to this problem?
4
Postfix / Re: unable to change port 25 to 587 in postfix
« on: April 21, 2020, 04:34:03 PM »
I managed to change the port to 587 to send emails but the error is still the same as mentioned below. Did telnet to check if the port is open. Telnet works and I am able to connect using port 587.
Any help on this will be appreciated.
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Apr 21 22:00:42 web postfix/smtp[55890]: EC3A14116462: to=, relay=none, delay=17292, delays=17291/0.05/0.71/0, dsn=4.4.1, status=deferred (connect to mail-tester.com[94.23.206.89]:587: Connection refused)
Apr 21 22:00:42 web postfix/smtp[55891]: connect to gmail-smtp-in.l.google.com[2404:6800:4003:c01::1b]:587: Network is unreachableAny help on this will be appreciated.
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Postfix / unable to change port 25 to 587 in postfix
« on: April 21, 2020, 03:23:02 PM »
Hi,
I am using CentOS 7 as the base OS with CWP version 0.9.8.956
I have been trying to change the port 25 to 587 or 465 to send emails using Postfix the default program that comes with CWP as port 25 is blocked by the ISP. As per the documentation I edited the Master.cf and added the line as below but did not help.
I think tried all possible solutions mentioned in the CWP forum and some other third party sites. Even edited the Main.cf and changed the TLS to enforce but that also did not help. Below is my Master.cf. Please help where I am going wrong.
I am using CentOS 7 as the base OS with CWP version 0.9.8.956
I have been trying to change the port 25 to 587 or 465 to send emails using Postfix the default program that comes with CWP as port 25 is blocked by the ISP. As per the documentation I edited the Master.cf and added the line as below but did not help.
Code: [Select]
587 inet n - n - - smtpdI think tried all possible solutions mentioned in the CWP forum and some other third party sites. Even edited the Main.cf and changed the TLS to enforce but that also did not help. Below is my Master.cf. Please help where I am going wrong.
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#
# Postfix master process configuration file. For details on the format
# of the file, see the Postfix master(5) manual page.
#
# ***** Unused items removed *****
# ==========================================================================
# service type private unpriv chroot wakeup maxproc command + args
# (yes) (yes) (yes) (never) (100)
# ==========================================================================
smtp inet n - n - - smtpd
#587 inet n - n - - smtpd
-o content_filter=smtp-amavis:127.0.0.1:10024
-o receive_override_options=no_address_mappings
#
## Enable SMTP on port 587 only for authenticated/TLS clients
submission inet n - - - - smtpd
-o smtpd_enforce_tls=yes
-o smtpd_sasl_auth_enable=yes
-o smtpd_client_restrictions=permit_sasl_authenticated,reject
## Enable SMTP on port 465 only for authenticated/SSL clients
smtps inet n - - - - smtpd
-o smtpd_tls_wrappermode=yes
-o smtpd_sasl_auth_enable=yes
-o smtpd_client_restrictions=permit_sasl_authenticated,reject
#
pickup fifo n - n 60 1 pickup
-o content_filter=
-o receive_override_options=no_header_body_checks
cleanup unix n - n - 0 cleanup
qmgr fifo n - n 300 1 qmgr
#qmgr fifo n - n 300 1 oqmgr
tlsmgr unix - - n 1000? 1 tlsmgr
rewrite unix - - n - - trivial-rewrite
bounce unix - - n - 0 bounce
defer unix - - n - 0 bounce
trace unix - - n - 0 bounce
verify unix - - n - 1 verify
flush unix n - n 1000? 0 flush
proxymap unix - - n - - proxymap
smtp unix - - n - - smtp
# When relaying mail as backup MX, disable fallback_relay to avoid MX loops
relay unix - - n - - smtp
-o fallback_relay=
# -o smtp_helo_timeout=5 -o smtp_connect_timeout=5
showq unix n - n - - showq
error unix - - n - - error
discard unix - - n - - discard
local unix - n n - - local
virtual unix - n n - - virtual
lmtp unix - - n - - lmtp
anvil unix - - n - 1 anvil
scache unix - - n - 1 scache
#
# ====================================================================
# Interfaces to non-Postfix software. Be sure to examine the manual
# pages of the non-Postfix software to find out what options it wants.
# ====================================================================
maildrop unix - n n - - pipe
flags=DRhu user=vmail argv=/usr/local/bin/maildrop -d ${recipient}
uucp unix - n n - - pipe
flags=Fqhu user=uucp argv=uux -r -n -z -a$sender - $nexthop!rmail ($recipient)
ifmail unix - n n - - pipe
flags=F user=ftn argv=/usr/lib/ifmail/ifmail -r $nexthop ($recipient)
bsmtp unix - n n - - pipe
flags=Fq. user=foo argv=/usr/local/sbin/bsmtp -f $sender $nexthop $recipient
#
# spam/virus section
#
smtp-amavis unix - - y - 2 smtp
-o smtp_data_done_timeout=1200
-o disable_dns_lookups=yes
-o smtp_send_xforward_command=yes
127.0.0.1:10025 inet n - y - - smtpd
-o content_filter=
-o smtpd_helo_restrictions=
-o smtpd_sender_restrictions=
-o smtpd_recipient_restrictions=permit_mynetworks,reject
-o mynetworks=127.0.0.0/8
-o smtpd_error_sleep_time=0
-o smtpd_soft_error_limit=1001
-o smtpd_hard_error_limit=1000
-o receive_override_options=no_header_body_checks
-o smtpd_helo_required=no
-o smtpd_client_restrictions=
-o smtpd_restriction_classes=
-o disable_vrfy_command=no
-o strict_rfc821_envelopes=yes
#
# Dovecot LDA
dovecot unix - n n - - pipe
flags=DRhu user=vmail:mail argv=/usr/libexec/dovecot/deliver -d ${recipient}
#
# Vacation mail
vacation unix - n n - - pipe
flags=Rq user=vacation argv=/usr/local/cwp/php71/bin/php -q /var/spool/vacation/vacation.php ${sender} ${recipient}
# SPF check
spfpolicy unix - n n - - spawn
user=nobody argv=/usr/bin/python /usr/libexec/postfix/policyd-spf
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