PowerMTA Support Forum

Please login or register.

Login with username, password and session length
Advanced search  

News:

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

Author Topic: Email encryption in transit  (Read 38360 times)

Port25-Admin1

  • Administrator
  • Hero Member
  • *****
  • Karma: +49/-4
  • Posts: 2361
Logged
Port25-Admin1
------------------
Try the following commands:
Quote
pmta show topdomains --errors
pmta show topqueues --errors
pmta --help

When PowerMTA won't start use:
Quote
pmtad --debug
When all else fails-->support@port25.com

lukewd

  • Jr. Member
  • **
  • Karma: +65533/-15
  • Posts: 67
    • TotalSend
Re: Email encryption in transit
« Reply #1 on: June 14, 2014, 03:37:00 AM »

How can we do the same with PowerMTA?
Logged

Port25-Admin2

  • Global Moderator
  • Hero Member
  • *****
  • Karma: +35/-1
  • Posts: 1527
Re: Email encryption in transit
« Reply #2 on: June 14, 2014, 12:53:33 PM »

<domain *>
.....
    use-starttls  yes
    require-starttls no
</domain>

will have PowerMTA use STARTTLS on outbound connections when the remote site supports STARTTLS, and will not use it when the remote site does not advertise support for it (opportunistic STARTTLS).
Logged

Blates

  • Jr. Member
  • **
  • Karma: +65534/-8
  • Posts: 31
Re: Email encryption in transit
« Reply #3 on: June 19, 2014, 04:17:27 AM »

<domain *>
.....
    use-starttls  yes
    require-starttls no
</domain>

will have PowerMTA use STARTTLS on outbound connections when the remote site supports STARTTLS, and will not use it when the remote site does not advertise support for it (opportunistic STARTTLS).
Is there much performance overhead for this?
Logged

Port25-Admin2

  • Global Moderator
  • Hero Member
  • *****
  • Karma: +35/-1
  • Posts: 1527
Re: Email encryption in transit
« Reply #4 on: June 19, 2014, 08:40:17 AM »

Not much, just some cpu usage that cannot be avoided.  Whether it will be noticeable to you just depends on your system, volume of email, cpu head room, etc....
Logged

lukewd

  • Jr. Member
  • **
  • Karma: +65533/-15
  • Posts: 67
    • TotalSend
Re: Email encryption in transit
« Reply #5 on: June 21, 2014, 01:21:31 AM »

Has anyone noticed enabling this having any affect on deliverability? More trusted perhaps?
Logged

Port25-Admin2

  • Global Moderator
  • Hero Member
  • *****
  • Karma: +35/-1
  • Posts: 1527
Re: Email encryption in transit
« Reply #6 on: June 23, 2014, 07:54:00 AM »

Since spammers are usually the first ones to do/try these things, I cannot imagine that it would offer any real deliverability benefits whatsoever.
Logged

CaLViN

  • Hero Member
  • *****
  • Karma: +43/-2
  • Posts: 1233
  • Hasan Kurtoglu
    • PowerMTA Administration Service
Re: Email encryption in transit
« Reply #7 on: June 24, 2014, 05:01:44 AM »

Has anyone noticed enabling this having any affect on deliverability? More trusted perhaps?
I dont believe this would have any affect on delivery.
Logged

Professional PowerMTA Administrator - Deliverability Expert

Contact me for Consultancy needs!