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VERIZON FIOS blocking all EMAIL ports?

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cyberdome
Bronze Contributor I
Bronze Contributor I
Posts: 70
Registered: ‎01-15-2014

VERIZON FIOS blocking all EMAIL ports?

Message 1 of 20
(5,179 Views)

I have been working on this for 2 weeks. I am so frustrated.  I think VERIZON FIOS is blocking all my EMAIL ports.  I have a FEDORA 20 LINUX server setup with SENDMAIL.  and I am unable to send email out to my YAHOO or GMAIL inbox.

 

I have setup everything.  Forwarded ports on my ROUTER. allowed ports in my IPTABLES, assigned the port in my sendmail.mc file.  forwarded ports in my LINUX server. It is still not sending mail out to my YAHOO inbox.  

 

Anyone know VERIZON is blocking all the ports?

19 REPLIES 19
Anti-Phish
Gold Contributor III
Gold Contributor III
Posts: 1,122
Registered: ‎12-04-2009

Re: VERIZON FIOS blocking all EMAIL ports?

Message 2 of 20
(5,174 Views)

What port are you trying to use outbound?

 

VZ blocks port 25 outbound on residential accounts.

No ports are blocked inbound.

 

cyberdome
Bronze Contributor I
Bronze Contributor I
Posts: 70
Registered: ‎01-15-2014

Re: VERIZON FIOS blocking all EMAIL ports?

Message 3 of 20
(5,166 Views)

I have forwarded port 25 on my ROUTER.

 

here is my sendmail.mc output file

 

divert(-1)dnl
dnl #
dnl # This is the sendmail macro config file for m4. If you make changes to
dnl # /etc/mail/sendmail.mc, you will need to regenerate the
dnl # /etc/mail/sendmail.cf file by confirming that the sendmail-cf package is
dnl # installed and then performing a
dnl #
dnl #     /etc/mail/make
dnl #
include(`/usr/share/sendmail-cf/m4/cf.m4')dnl
VERSIONID(`setup for linux')dnl
OSTYPE(`linux')dnl
dnl #
dnl # Do not advertize sendmail version.
dnl #
dnl define(`confSMTP_LOGIN_MSG', `$j Sendmail; $b')dnl
dnl #
dnl # default logging level is 9, you might want to set it higher to
dnl # debug the configuration
dnl #
define(`confLOG_LEVEL', `69')dnl
dnl #
dnl # Uncomment and edit the following line if your outgoing mail needs to
dnl # be sent out through an external mail server:
dnl #
define(`SMART_HOST', `smtp.isp.net')dnl
define(`RELAY_MAILER_ARGS', `TCP $h 587')dnl
FEATURE(authinfo)dnl
dnl #
define(`confDEF_USER_ID', ``8:12'')dnl
dnl define(`confAUTO_REBUILD')dnl
define(`confTO_CONNECT', `1m')dnl
define(`confTRY_NULL_MX_LIST', `True')dnl
define(`confDONT_PROBE_INTERFACES', `True')dnl
define(`PROCMAIL_MAILER_PATH', `/usr/bin/procmail')dnl
define(`ALIAS_FILE', `/etc/aliases')dnl
define(`STATUS_FILE', `/var/log/mail/statistics')dnl
define(`UUCP_MAILER_MAX', `2000000')dnl
define(`confUSERDB_SPEC', `/etc/mail/userdb.db')dnl
define(`confPRIVACY_FLAGS', `authwarnings,novrfy,noexpn,restrictqrun')dnl
define(`confAUTH_OPTIONS', `A')dnl
dnl #
dnl # The following allows relaying if the user authenticates, and disallows
dnl # plaintext authentication (PLAIN/LOGIN) on non-TLS links
dnl #
dnl define(`confAUTH_OPTIONS', `A p')dnl
dnl # 
dnl # PLAIN is the preferred plaintext authentication method and used by
dnl # Mozilla Mail and Evolution, though Outlook Express and other MUAs do
dnl # use LOGIN. Other mechanisms should be used if the connection is not
dnl # guaranteed secure.
dnl # Please remember that saslauthd needs to be running for AUTH. 
dnl #
dnl TRUST_AUTH_MECH(`EXTERNAL DIGEST-MD5 CRAM-MD5 LOGIN PLAIN')dnl
dnl define(`confAUTH_MECHANISMS', `EXTERNAL GSSAPI DIGEST-MD5 CRAM-MD5 LOGIN PLAIN')dnl
dnl #
dnl # Rudimentary information on creating certificates for sendmail TLS:
dnl #     cd /etc/pki/tls/certs; make sendmail.pem
dnl # Complete usage:
dnl #     make -C /etc/pki/tls/certs usage
dnl #
dnl define(`confCACERT_PATH', `/etc/pki/tls/certs')dnl
dnl define(`confCACERT', `/etc/pki/tls/certs/ca-bundle.crt')dnl
dnl define(`confSERVER_CERT', `/etc/pki/tls/certs/sendmail.pem')dnl
dnl define(`confSERVER_KEY', `/etc/pki/tls/certs/sendmail.pem')dnl
dnl #
dnl # This allows sendmail to use a keyfile that is shared with OpenLDAP's
dnl # slapd, which requires the file to be readble by group ldap
dnl #
dnl define(`confDONT_BLAME_SENDMAIL', `groupreadablekeyfile')dnl
dnl #
dnl define(`confTO_QUEUEWARN', `4h')dnl
dnl define(`confTO_QUEUERETURN', `5d')dnl
dnl define(`confQUEUE_LA', `12')dnl
dnl define(`confREFUSE_LA', `18')dnl
define(`confTO_IDENT', `0')dnl
dnl # If you're operating in a DSCP/RFC-4594 environment with QoS
dnl define(`confINET_QOS', `AF11')dnl
dnl FEATURE(delay_checks)dnl
FEATURE(`no_default_msa', `dnl')dnl
FEATURE(`smrsh', `/usr/sbin/smrsh')dnl
FEATURE(`mailertable', `hash -o /etc/mail/mailertable.db')dnl
FEATURE(`virtusertable', `hash -o /etc/mail/virtusertable.db')dnl
FEATURE(redirect)dnl
FEATURE(always_add_domain)dnl
FEATURE(use_cw_file)dnl
FEATURE(use_ct_file)dnl
dnl #
dnl # The following limits the number of processes sendmail can fork to accept 
dnl # incoming messages or process its message queues to 20.) sendmail refuses 
dnl # to accept connections once it has reached its quota of child processes.
dnl #
dnl define(`confMAX_DAEMON_CHILDREN', `20')dnl
dnl #
dnl # Limits the number of new connections per second. This caps the overhead 
dnl # incurred due to forking new sendmail processes. May be useful against 
dnl # DoS attacks or barrages of spam. (As mentioned below, a per-IP address 
dnl # limit would be useful but is not available as an option at this writing.)
dnl #
dnl define(`confCONNECTION_RATE_THROTTLE', `3')dnl
dnl #
dnl # The -t option will retry delivery if e.g. the user runs over his quota.
dnl #
FEATURE(local_procmail, `', `procmail -t -Y -a $h -d $u')dnl
FEATURE(`access_db', `hash -T<TMPF> -o /etc/mail/access.db')dnl
FEATURE(`blacklist_recipients')dnl
EXPOSED_USER(`root')dnl
dnl #
dnl # For using Cyrus-IMAPd as POP3/IMAP server through LMTP delivery uncomment
dnl # the following 2 definitions and activate below in the MAILER section the
dnl # cyrusv2 mailer.
dnl #
dnl define(`confLOCAL_MAILER', `cyrusv2')dnl
dnl define(`CYRUSV2_MAILER_ARGS', `FILE /var/lib/imap/socket/lmtp')dnl
dnl #
dnl # The following causes sendmail to only listen on the IPv4 loopback address
dnl # 127.0.0.1 and not on any other network devices. Remove the loopback
dnl # address restriction to accept email from the internet or intranet.
dnl #
dnl # DAEMON_OPTIONS(`Port=smtp,Addr=127.0.0.1, Name=MTA')dnl
dnl #
dnl # The following causes sendmail to additionally listen to port 587 for
dnl # mail from MUAs that authenticate. Roaming users who can't reach their
dnl # preferred sendmail daemon due to port 25 being blocked or redirected find
dnl # this useful.
dnl #
dnl DAEMON_OPTIONS(`Port=submission, Name=MSA, M=Ea')dnl
dnl #
dnl # The following causes sendmail to additionally listen to port 465, but
dnl # starting immediately in TLS mode upon connecting. Port 25 or 587 followed
dnl # by STARTTLS is preferred, but roaming clients using Outlook Express can't
dnl # do STARTTLS on ports other than 25. Mozilla Mail can ONLY use STARTTLS
dnl # and doesn't support the deprecated smtps; Evolution <1.1.1 uses smtps
dnl # when SSL is enabled-- STARTTLS support is available in version 1.1.1.
dnl #
dnl # For this to work your OpenSSL certificates must be configured.
dnl #
dnl DAEMON_OPTIONS(`Port=smtps, Name=TLSMTA, M=s')dnl
dnl #
dnl # The following causes sendmail to additionally listen on the IPv6 loopback
dnl # device. Remove the loopback address restriction listen to the network.
dnl #
dnl DAEMON_OPTIONS(`port=smtp,Addr=::1, Name=MTA-v6, Family=inet6')dnl
dnl #
dnl # enable both ipv6 and ipv4 in sendmail:
dnl #
dnl DAEMON_OPTIONS(`Name=MTA-v4, Family=inet, Name=MTA-v6, Family=inet6')
dnl #
dnl # We strongly recommend not accepting unresolvable domains if you want to
dnl # protect yourself from spam. However, the laptop and users on computers
dnl # that do not have 24x7 DNS do need this.
dnl #
dnl # FEATURE(`accept_unresolvable_domains')dnl
dnl #
dnl FEATURE(`relay_based_on_MX')dnl
dnl # 
dnl # Also accept email sent to "localhost.localdomain" as local email.
dnl # 
LOCAL_DOMAIN(`localhost.localdomain')dnl
dnl #
dnl # The following example makes mail from this host and any additional
dnl # specified domains appear to be sent from mydomain.com
dnl #
dnl MASQUERADE_AS(`mydomain.com')dnl
dnl #
dnl # masquerade not just the headers, but the envelope as well
dnl #
dnl FEATURE(masquerade_envelope)dnl
dnl #
dnl # masquerade not just @mydomainalias.com, but @*.mydomainalias.com as well
dnl #
dnl FEATURE(masquerade_entire_domain)dnl
dnl #
dnl MASQUERADE_DOMAIN(localhost)dnl
dnl MASQUERADE_DOMAIN(localhost.localdomain)dnl
dnl MASQUERADE_DOMAIN(mydomainalias.com)dnl
dnl MASQUERADE_DOMAIN(mydomain.lan)dnl
MAILER(smtp)dnl
MAILER(procmail)dnl
dnl MAILER(cyrusv2)dnl

 

 

systemctl status sendmail.service

 

systemctl status sendmail.service -l
sendmail.service - Sendmail Mail Transport Agent
   Loaded: loaded (/usr/lib/systemd/system/sendmail.service; enabled)
   Active: active (running) since Sun 2014-03-30 10:55:40 CDT; 3min 59s ago
  Process: 16300 ExecStart=/usr/sbin/sendmail -bd $SENDMAIL_OPTS $SENDMAIL_OPTARG (code=exited, status=0/SUCCESS)
  Process: 16295 ExecStartPre=/etc/mail/make aliases (code=exited, status=0/SUCCESS)
  Process: 16293 ExecStartPre=/etc/mail/make (code=exited, status=0/SUCCESS)
 Main PID: 16301 (sendmail)
   CGroup: /system.slice/sendmail.service
           ├─16301 sendmail: accepting connection
           └─16302 sendmail: ./s2UA9XT2013622 smtp.verizon.net.: client greetin

Mar 30 10:55:40 fedoraserver sendmail[16301]: starting daemon (8.14.8): SMTP+queueing@01:00:00
Mar 30 10:55:40 fedoraserver systemd[1]: Started Sendmail Mail Transport Agent.
Mar 30 10:57:40 fedoraserver sendmail[16218]: s2UA9XT2013622: timeout waiting for input from smtp.verizon.net. during client QUIT



cyberdome
Bronze Contributor I
Bronze Contributor I
Posts: 70
Registered: ‎01-15-2014

Re: VERIZON FIOS blocking all EMAIL ports?

Message 4 of 20
(5,161 Views)
my IPTBALES on my linux server.
 
Chain IN_public_allow (1 references)
target     prot opt source               destination         
ACCEPT     udp  --  anywhere             224.0.0.251          udp dpt:mdns ctstate NEW
ACCEPT     tcp  --  anywhere             anywhere             tcp dpt:http ctstate NEW
ACCEPT     tcp  --  anywhere             anywhere             tcp dpts:rfb:5903 ctstate NEW
ACCEPT     tcp  --  anywhere             anywhere             tcp dpt:smtp ctstate NEW
ACCEPT     tcp  --  anywhere             anywhere             tcp dpt:ssh ctstate NEW
ACCEPT     tcp  --  anywhere             anywhere             tcp dpt:https ctstate NEW
ACCEPT     tcp  --  anywhere             anywhere             tcp dpt:mysql ctstate NEW
ACCEPT     tcp  --  anywhere             anywhere             tcp dpt:submission ctstate NEW
ACCEPT     tcp  --  anywhere             anywhere             tcp dpt:urd ctstate NEW

 

 
viafax999
Gold Contributor VII Gold Contributor VII
Gold Contributor VII
Posts: 2,161
Registered: ‎11-10-2009

Re: VERIZON FIOS blocking all EMAIL ports?

Message 5 of 20
(5,152 Views)

Verizon blocks port 25 outbound

Port 465 is used for the gmail smtp server

I use port 465 for the Verizon smtp server too.

 

Are you perhaps not passing your Verizon email userid and password to the outbound verizon smtp server??

 

tns2
Platinum Contributor III Platinum Contributor III
Platinum Contributor III
Posts: 4,437
Registered: ‎12-16-2012

Re: VERIZON FIOS blocking all EMAIL ports?

Message 6 of 20
(5,144 Views)

As said port 25 is blocked.  INBOUND AND OUTBOUND EXCEPT TO VERIZON SERVERS.

tns2
Platinum Contributor III Platinum Contributor III
Platinum Contributor III
Posts: 4,437
Registered: ‎12-16-2012

Re: VERIZON FIOS blocking all EMAIL ports?

Message 7 of 20
(5,142 Views)

@Anti-Phish wrote:

What port are you trying to use outbound?

 

VZ blocks port 25 outbound on residential accounts.

No ports are blocked inbound.

 


Except to authorized verizon email servers and business accounts 25 is just plain blocked in transit through verizon servers

viafax999
Gold Contributor VII Gold Contributor VII
Gold Contributor VII
Posts: 2,161
Registered: ‎11-10-2009

Re: VERIZON FIOS blocking all EMAIL ports?

Message 8 of 20
(5,138 Views)

@Anti-Phish wrote:

What port are you trying to use outbound?

 

VZ blocks port 25 outbound on residential accounts.

No ports are blocked inbound.

 


Well actually I would say that all inbound ports are blocked unless you choose to open them via a port forwarding rule..

tns2
Platinum Contributor III Platinum Contributor III
Platinum Contributor III
Posts: 4,437
Registered: ‎12-16-2012

Re: VERIZON FIOS blocking all EMAIL ports?

Message 9 of 20
(5,136 Views)

@viafax999 wrote:

@Anti-Phish wrote:

What port are you trying to use outbound?

 

VZ blocks port 25 outbound on residential accounts.

No ports are blocked inbound.

 


Well actually I would say that all inbound ports are blocked unless you choose to open them via a port forwarding rule..



More than that.  Unless you have a business account port 25 traffic will not reach your location.  Has nothing to do with what is blocked in your router.

viafax999
Gold Contributor VII Gold Contributor VII
Gold Contributor VII
Posts: 2,161
Registered: ‎11-10-2009

Re: VERIZON FIOS blocking all EMAIL ports?

Message 10 of 20
(5,134 Views)

I'll believe you.

I never had anything listening on port 25 so never bothered to see if it could be opened.

 

I figure his issue is that he's not providing the userid and password for access to smtp.verizon.net.

 

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