OS/2, eCS & ArcaOS - Technical > Applications

PMMail fails sending messages

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Thomas M.:
I am desperatly trying to make PMMail sending messages without success.
I am a registered user and I am running PMMail 3.11.30.1767.
Receiving messages works pretty good. But sending doesn't.

The settings of my Internet Service Provider are as follows.

                                              POP                      IMAP                                SMTP
Server                                  pop.swbmail.de imap.swbmail.de            smtp.swbmail.de
Port                                      995                        993                                   587
Authentifizierung               E-Mail-Adresse   E-Mail-Adresse             E-Mail-Adresse
                                              E-Mail-Passwort   E-Mail-Passwort          E-Mail-Passwort
Verbindungssicherheit    SSL/TLS                 SSL/TLS                    STARTTLS


To me it seems that STARTTLS might be the problem.

Any hints what to try to make PMMail send messages succesfully?

Dariusz Piatkowski:

--- Quote from: Thomas M. on January 20, 2025, 08:04:11 pm ---I am desperatly trying to make PMMail sending messages without success.
I am a registered user and I am running PMMail 3.11.30.1767.
Receiving messages works pretty good. But sending doesn't.
...
Any hints what to try to make PMMail send messages succesfully?

--- End quote ---

What does PMMail log show?

You can find it here: Toolbar => PMMail => View Program Log File

As an idea: could you use POP to handle your Outbound email tasks? I realize that POP is not meant for that, but PMMail 'Send' tab certainly shows POP as a viable choice here (at least on my 3.25 release).

Here is a decent review of all the protocol options => https://world.siteground.com/tutorials/email/protocols-pop3-smtp-imap/

Neil Waldhauer:
PMMail send works here with SMTP port 465 SSL/TLS.

This is the version of stunnel I am using.

stunnel 5.58 on i386-pc-os2-emx built by Paul Smedley on Jun 16 2021

Dave Yeo:
Is there a stunnel.ini or similar file? If so, you need the parameter "protocol = smtp" (without quotes) in it.

Rich Walsh:
You didn't explicitly say that you're using 'stunnel' but I'll assume you are. Here's the section of my 'stunnel.conf' for my ISP:


--- Quote ---[century]
client = yes
accept = 127.0.0.1:25
connect = smtp.centurylink.net:587
;
verifyChain = yes
CAfile = N:/etc/pki/tls/certs/ca-bundle.trust.crt
checkHost = smtp.centurylink.net
;
protocol = smtp
protocolUsername = <my email>
protocolPassword = <my password>
protocolAuthentication = login

--- End quote ---

The "protocolAuthentication" line may not be needed by your ISP.

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