Thank you one and all for your suggestions, and time. I had not realised that this would turn into such a saga.
I have indeed got the flag set to retain the Deleted Files Folder on exit. I find that it is often a necessary evil when emails do not, for some reason, arrive at their destination or I am in dispute over anything. I clear it down manually once a week.
As you can see, I have the flag set to retain Deleted Folders on EXIT.
from the copy on my PMAIL.INI file (below).
I'm sorry Brian, but I can't find anything that looks remotely like it refers to either retained or deleted Delete Folders.
PMAIL.INI file;-
[General]
Personal name = David T-C.
Home mailbox location = C:\PMAIL\MAIL\ADMIN
Folder for copies to self = A-Sent
Commenting string = "> "
Default reply-to address = DavidTC2@btinternet.com
MHS mailbox name =
MHS Application directory =
MHS address =
Scan MHS application directory = Y
Copy to self = Y
Edit mail before forwarding = N
Save deleted messages until exit = Y
Leave read mail in newmail folder = Y
Request confirmation of reading = N
[Pegasus Mail for Windows]
Default right margin = 70
Folder sort order = 0
Temporary files directory =
Activity flags = 768
Reply field settings = 111100000
Startup directory =
Open new mail folder at startup = Y
Prompt to select copy to self folder = N
Address book sort order = 0
Require password at startup = N
Use MIME features = Y
Default MIME character set = ISO-8859-1
Encrypt copies-to-self of encrypted mail = N
Don't confirm message deletion = Y
Enclose attachments instead of separating = Y
Noticeboard sort order = 0
Lines to scan for message enclosures = 20
Button panel mode = 2
Button panel is closed = N
Button panel window rectangle = 0 0 0 0
New mail folder window rectangle = 0 0 0 0
Default signature for outgoing mail = 0
Request confirmation of delivery = N
Application window frame is maximized = N
Application window rectangle = 72 4 1288 764
Editor window default width and depth = 766 626
Reader window default width and depth = 0 0
Font to use in message reader = Arial, 10, 0
Font to use in message editor = Arial, 10, 0
Font to use in folder browser = Tahoma, 12, 0
Font to use for printing = -, 15, 0
Offer advanced reply options = Y
Top/bottom margin for printing = 20 1691792
Left/right margin for printing = 20 1691792
Local user list window rectangle = 88 88 323 298
Reformat hard line breaks in replies = 2
Printer device name = Canon iP7200 series
Printer driver name =
Printer port =
Tab width in message editor (0-disable) = 8
Logged-in user list window rectangle = 104 104 286 297
Save desktop state between sessions = Y
Wrap long lines in message reader = 2
Built-in POP3 transport options word = 560
Don't autoload WINSOCK.DLL if found = N
Seconds between POP3 new mail checks = 3000
Seconds between regular new mail checks = 10
Secondary organization name =
Timezone for internal transport = +0100
Refuse confirm-read requests (internal) = P
Telltale window mode = 1
Telltale window control word = 31
Location of TLC of telltale window = 33 28
DList Manager window rectangle = 0 0 0 0
Noticeboard Manager window rectangle = 0 0 0 0
Header printing setting = 0
Extensions manager window rectangle = 78 78 202 307
WAV file for new mail sound alert =
Folder manager window rectangle = 874 2 380 638
Omit message headers when replying = N
Use custom header when replying = Y
Custom header format string = On ~D at ~T, ~F wrote:
Font to use in folder manager window = MS Sans Serif, 13, 0
Quick folder definition =
Quick folder definition =
Quick folder definition =
Quick folder definition =
Quick folder definition =
Quick folder definition =
Quick folder operating flags = 0
MHS directory service window rectangle = 0 0 0 0
Use system colours = Y
Display hot URLs in reader = 27
Web browser commandline = C:\Program Files (x86)\Mozilla Firefox\firefox.exe
Message reader format options = 20994
Message editor format options = 7442049
Message editor autosave interval = 5
Default settings values = 0010000F000201400100010000000000
New mail folder column widths = 0 0
Combined multipart reader rectangle = 0 0 0 0
General system flags = 0
Default mail folder name = New mail
Last run version = 1139 1 1 9
Commandline for dialling =
Commandline for hanging up =
Dialling flags = 0
System message reporting level = 10
Message reader wrapping margin = 80
Styled message editor margin = 170
Styled message editor tab width = 12
Automatic formatting settings = 19
Reader hyperlink display limit = 50
Margin for Ctrl-J operations = 96
Preferred layout for normal messages = 0
Integer preference block 1 = 12295 24000 17 5 330 0 0 7 0 3 0 0 0 0 0 0
Colours = 33587071 255 128 0 0 16777088 16777088 16777088 14875646 0 0 0 0 0 0 0
Custom colours = 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Printing banner = ~P
POP3 Definition = POPO0T2S.PND, 0
SMTP Definition = SMT9MHDL.PND, 0
Internet E-mail Address = DavidTC2@btinternet.com.com
Default TCP/IP timeout value = 6000
Favourite directory =
Personal Name (UTF-8 version) = David T-C.
Whitelist max count = 500
Whitelist flags = 3
[Pegasus Mail for Windows - Run Info]
Program version = Version 4.73.639, Mar 30 2018
Language resources = Standard UK English resource set
Time and date run ended = Sat, 22 Oct 2022 21:53:52
Running in standalone mode? = Y
Internal username = Single-user mode
Working home mailbox location = C:\PMAIL\MAIL\ADMIN
New mailbox location = C:\PMAIL\MAIL/ADMIN
LAN-based SMTP gateway status = Disabled, not preferred, not 'use always'.
MHS status = Disabled, not preferred, not 'use always'.
MHS directory path = /
MHS operating mode = SMF-70
[Pegasus Mail for Windows - Identities]
Name = David
[WinPMail Identity - David]
Personal name = David T-C.
Home mailbox location = C:\PMAIL\MAIL\ADMIN
Folder for copies to self = SENT
Commenting string = "> "
Default reply-to address = DavidTC2@btinternet.com
MHS mailbox name =
MHS Application directory =
MHS address =
Scan MHS application directory = Y
Copy to self = Y
Edit mail before forwarding = N
Save deleted messages until exit = Y
Leave read mail in newmail folder = Y
Request confirmation of reading = N
Default right margin = 70
Folder sort order = 0
Temporary files directory =
Activity flags = 768
Reply field settings = 111100000
Startup directory =
Open new mail folder at startup = Y
Prompt to select copy to self folder = N
Address book sort order = 0
Require password at startup = N
Use MIME features = Y
Default MIME character set = ISO-8859-1
Encrypt copies-to-self of encrypted mail = N
Don't confirm message deletion = Y
Enclose attachments instead of separating = Y
Noticeboard sort order = 0
Lines to scan for message enclosures = 20
Button panel mode = 2
Button panel is closed = N
Button panel window rectangle = 0 0 0 0
New mail folder window rectangle = 0 0 0 0
Default signature for outgoing mail = 0
Request confirmation of delivery = N
Application window frame is maximized = N
Application window rectangle = 104 14 1242 758
Editor window default width and depth = 160 39
Reader window default width and depth = 0 0
Font to use in message reader = Arial, 10, 0
Font to use in message editor = Arial, 10, 0
Font to use in folder browser = Tahoma, 12, 0
Font to use for printing = -, 15, 0
Offer advanced reply options = Y
Top/bottom margin for printing = 20 1691460
Left/right margin for printing = 20 1691460
Local user list window rectangle = 88 88 323 298
Reformat hard line breaks in replies = 0
Printer device name = Canon iP7200 series
Printer driver name =
Printer port =
Tab width in message editor (0-disable) = 4
Logged-in user list window rectangle = 0 0 0 0
Save desktop state between sessions = Y
Wrap long lines in message reader = 2
Built-in POP3 transport options word = 561
Don't autoload WINSOCK.DLL if found = N
Seconds between POP3 new mail checks = 300
Seconds between regular new mail checks = 10
Secondary organization name =
Timezone for internal transport = +0100
Refuse confirm-read requests (internal) = P
Telltale window mode = 0
Telltale window control word = 31
Location of TLC of telltale window = 829 44
DList Manager window rectangle = 0 0 0 0
Noticeboard Manager window rectangle = 0 0 0 0
Header printing setting = 0
Extensions manager window rectangle = 0 0 0 0
WAV file for new mail sound alert =
Folder manager window rectangle = 881 -6 324 628
Omit message headers when replying = Y
Use custom header when replying = Y
Custom header format string = On ~D at ~T, ~F wrote:
Font to use in folder manager window = MS Sans Serif, 13, 0
Quick folder definition =
Quick folder definition =
Quick folder definition =
Quick folder definition =
Quick folder definition =
Quick folder definition =
Quick folder operating flags = 0
MHS directory service window rectangle = 0 0 0 0
Use system colours = Y
Display hot URLs in reader = 29
Web browser commandline = C:\Program Files (x86)\Mozilla Firefox\firefox.exe
Message reader format options = 20994
Message editor format options = 7441953
Message editor autosave interval = 1
Default settings values = 0010000F000201400100000000000000
New mail folder column widths = 0 0
Combined multipart reader rectangle = 0 0 0 0
General system flags = 0
Default mail folder name = New mail
Last run version = 1139 1 1 9
Identity-specific base filename = DRX1SKC9
Commandline for dialling =
Commandline for hanging up =
Dialling flags = 0
System message reporting level = 10
Message reader wrapping margin = 80
Styled message editor margin = 145
Styled message editor tab width = 12
Automatic formatting settings = 19
Reader hyperlink display limit = 30
Margin for Ctrl-J operations = 74
Preferred layout for normal messages = 0
Integer preference block 1 = 12303 24000 17 0 10 0 0 7 0 3 0 0 0 0 0 0
Colours = 32768 32768 128 0 0 15400447 16775924 15400447 14875646 0 0 0 0 0 0 0
Custom colours = 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Printing banner = ~P
POP3 Definition = POPO0T2S.PND, 0
SMTP Definition = SMT9MHDL.PND, 0
Internet E-mail Address = DavidTC2@btinternet.com
Default TCP/IP timeout value = 600
Favourite directory =
Personal Name (UTF-8 version) = David T-C.
Whitelist max count = 500
Whitelist flags = 3
Host where POP3 mail account is located =
POP3 mail account (username on host) =
V3 Password for POP3 mail account = SEED$12872:""
Delete downloaded mail from host = Y
Largest message size to retrieve = 0
Directory to place incoming POP3 mail =
Transport control word = 256
SMTP relay host for outgoing mail =
Search mask to locate outgoing messages =
Alternative From: field for message =
TCP/IP timeout value (seconds) = 30
The only thing (I say only, but I mean that numerically and not in any other sense!) that has changed since I had had this working perfectly (which it had been doing for over 10 years!), is that I had to reinstall Windows 10. My installed version was crawling like a snail, and getting slower!
I appreciate the time and effort that you all are expending on my behalf.
David Tarbox-Cooper.