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PowerMTA 5.5r1 is out!!!!  Please contact support@port25.com for a license and download access.

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 on: November 21, 2022, 12:03:29 PM 
Started by Netstart - Last post by Netstart
Hi, the service is created in C# and also using the object port25.pmta.api.submitter. The service as working fine but after a few jobs that sending messages in PMTA, it cause issue in some jobs, please see the issue description below. Please note that some other jobs 'job_ID1121x' are already in queue in the pmta. I search in the forum to find any similar issue, but cant find. Any idea what is going on?

Error : port25.pmta.api.submitter.ServiceException: SMTP command failed: 554 5.5.0 specified Virtual MTA 'job_ID2123x' does not exist at port25.pmta.api.submitter.SmtpSocket.CheckReply() at port25.pmta.api.submitter.Message.Send(SmtpSender socket) at port25.pmta.api.submitter.Connection.Submit(Message msg) at ServiceSender.ServiceSender.SubmitToPMTA(Connection connPMTA, Message msg)


 on: May 04, 2022, 08:48:30 PM 
Started by marksullivan - Last post by marksullivan
Hi all,
I'm seeing a six week delay in some FBLs from Yahoo.  Is anyone else?  The headers indicate that the delay is within their infrastructure.

 on: April 20, 2022, 01:07:44 PM 
Started by srinatha.ns - Last post by srinatha.ns
Hello everyone,
Is it possible to encode messages with base64 or quoted printable using mailmerge
For example we have a file like this

Code: [Select]
XMRG FROM:<travelAlerts@example.port25.com> VERP
XDFN FName="Alice" Airport="IAD" MilesToBonus="120" XDFN City="Herndon" State="VA" *parts=1-3 *vmta="mta4" XDFN *jobid="TravelAlerts"
RCPT TO:<alice@example.port25.com>
XDFN FName="Bob" Airport="BWI"
XDFN City="Ellicott City" State="MD" *parts=1,3 *vmta="mta5" XDFN *jobid="TravelAlerts"
RCPT TO:<bob@example.port25.com>
From: "Customer Service" [*from]
To: "[FName]" [*to]
Date: [*date]
Subject: Travel Plans

Dear [FName], 
You are flying out of [Airport] given that it is closest to your location in [City], [State].

And we want that the message will be encoded with the replaced tags


 on: August 28, 2021, 09:08:11 AM 
Started by pateldesigner - Last post by sysnxweb
     Enter the below line in /etc/pmta/config
http-access monitor
http-access admin

And then
#service pmta restart
#service pmtahttp restart

Note:#http-mgmt-port 8080 (should be assigned by your side or use default port 8080)

Problem can be fixed by this method.Thank you.

Warm Regards

 on: May 31, 2021, 10:06:41 PM 
Started by percyb - Last post by percyb
MX Tool Box has blacklisted our IP due to a fault of ISP which has  dished out IP addresses that are Spammers.
Our IP happens to fall in the domain of ISP.
However the Severity reported by MX Toolbox says very Low.
It is taking a while for our ISP to fix this issue.
Will this affect our reputation.

 on: January 20, 2021, 11:58:22 AM 
Started by VIN786 - Last post by simonluger
latest pmta 5r07 supports suppression lists accessible via http links now, we are using it to maintain global spamtrap black list for all our pmtas, if interest to share/exchange with us PM me

 on: January 06, 2021, 02:14:25 AM 
Started by sysnxweb - Last post by sysnxweb
I have two server for sending a smtp email . In first primary server I installed powerMTA and second server I did not install Powermta but I need to send email using second server with the ip address my config file below I  mentioned

          always-allow-relaying yes   # allow feeding from
        process-x-virtual-mta yes   # allow selection of a virtual MTA
        max-message-size 0          # 0 implies no cap, in bytes
        smtp-service yes            # allow SMTP service
        allow-mailmerge yes
<source 216.xxx.xxx.226>           # phplist or oempro installed
    always-allow-relaying yes 
    process-x-virtual-mta yes 
    max-message-size 0       
    smtp-service yes       
    hide-message-source true
    remove-header Received

<source 104.xxx.xxx.18>
    always-allow-relaying yes 
    process-x-virtual-mta yes 
    max-message-size 0       
    smtp-service yes       
    hide-message-source true
    remove-header Received
<source 0/0>                    # matches all
    log-connections no
    log-commands    no          # WARNING: verbose!
    log-data        no          # WARNING: even more verbose!
    allow-unencrypted-plain-auth no
    default-virtual-mta mta-pool
    process-x-virtual-mta yes
    smtp-service yes
    always-allow-api-submission yes
<virtual-mta mta1>
    <domain *>
        max-cold-virtual-mta-msg 100/day
    smtp-source-host 216.xxx.xxx.226 server1.globalhands.online       # MPTA installed

<virtual-mta mta6>
    <domain *>
        max-cold-virtual-mta-msg 100/day
        dkim-sign yes
        #dkim-identity server2.globalhands.onlne
    smtp-source-host 104.xxx.xxx.18  server2.globalhands.online


<virtual-mta-pool mta-pool>
    virtual-mta mta1
    virtual-mta mta6

# SMTP users (authenticated via SMTP AUTH)
#<smtp-user API>
#    password "changeme"

# Settings per outgoing domain
#<domain discard.port25.com>
#    max-smtp-out    800
#    route           []:2525  # bypasses DNS resolution
#<domain test.port25.com>
#    max-smtp-out    1
#    log-connections yes
#    log-commands    yes     # WARNING: verbose!
#    log-resolution  no      # WARNING: verbose!
#    log-data        no      # WARNING: even more verbose!

#<domain {sparkpost}>
#    auth-username Your_API_key_goes_here    # generate under Account/API Keys

<domain *>
    max-smtp-out    200       # max. connections *per domain*
    bounce-after    4d12h    # 4 days, 12 hours
    retry-after     10m      # 10 minutes

# Port used for HTTP management interface
http-mgmt-port 8080

# IP addresses allowed to access the HTTP management interface, one
# per line
http-access monitor
http-access ::1 monitor
http-access admin
http-access ::1 admin
http-access 113.193.xx.19 admin
http-access 0/0 admin
http-access 202.61.xxx.226 admin
http-access monitor
http-access 202.61.xxx.226 monitor
http-access 0/0 monitor
http-access 104.192.xxx.18 admin
#http-access none
#http-access 10.1.0/24 admin

# Whether to run the PowerMTA deamon as root
run-as-root no

# Logging file name
log-file /var/log/pmta/pmta.log   # logrotate is used for rotation

# Accounting file(s)
<acct-file /var/log/pmta/acct.csv>
#    move-to /opt/myapp/pmta-acct   # configure as fit for your application
    move-interval 5m
    max-size 50M
    delete-after 8d

# Spool directories
<spool /var/spool/pmta>
    deliver-only no

# EOF   

How to connect my second server Ip address in virtual mta.If I have added it  throwing a error "Local Ip address is not a valid" .Will please suggest me What I have did wrong on my configuration

 on: May 19, 2020, 06:48:19 AM 
Started by WillemStam - Last post by WillemStam
Postmastery strongly encourages the use of a version control system for PowerMTA configurations.

For this reason, Postmastery created a new blog post where we define version control, explain why PowerMTA configuration version control is important and we give you some guidelines on how to implement this.

Please read below blog post for further details:

This blog post is available in French as well:

 on: February 25, 2020, 06:36:28 AM 
Started by WillemStam - Last post by WillemStam
One new thing Postmastery is particularly excited about is PowerMTA 5.0 support for forward proxies: this allows delivery from IPs which don’t need to be co-located on the same server or subnet.

In this blog post, we will explain this with a few use cases and introduce our free of charge Postmastery’s MTA proxy for a ready-to-go solution.

Please read below blog post for further details:

This blog post is available in French as well:

 on: December 17, 2019, 08:20:33 AM 
Started by misit - Last post by misit
Hi guys,

recently i have noticed that some of my emails (Legitimate sends) send to Hotmail, takes a strange route.  First i can see its in the inbox (Focused folder) as a new email,  but when i reach out to open the email, it gets disappear. When checked Junk folder, emails is in there.

Does anyone come across this behavior before...?

Thanks in Advance.


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