Creating a new mail with To:, Subject:, and simple text in the body, add an attachment like blabla.pdf (with or without choosing File Type: Adobe or Mailer decides) and sending this one results in an

"354 Start mail input; end with <CRLF>.<CRLF>"

and a message with "mail delivery failure". The mail remainsl in the queued folder.
Tried different filenames like "bla bla.pdf", "bla_bla.pdf" and "bla_bla.pdf" - same behavior.
Size of "blabla.pdf" is ~ 2MB.

Tried different pdf-files with different sizes as attachment - same behavior. Seems to be a problem with the .pdf-filetype and not with the files.

Attachment for example like "bla.txt" works fine...

"Filetype.pm" is untouched - no Adobe or pdf-entry is in there...

=================

Version Informations:
Pegasus Mail for Microsoft Windows
Copyright (C) 1992-2022, David Harris, all rights reserved
Electronic mail to support@pmail.gen.nz.

WinPMail version: Version 4.80.1028, Jan 16 2022, build ID 1028
Language resources: Standard UK English resources (EN,0,LL)
Extension Manager version: 1.14
Operating mode: Standalone
User name and ID: Single-user mode, 0
Windows version: 6.2
Windows flag word: 0
WINPMAIL.EXE directory: C:\Program Files (x86)\Internet\PMail\Programs
Home mailbox location: D:\PMAIL\MAIL
New mailbox location: D:\PMAIL\MAIL
TMP environment variable: H:\Temp
TEMP environment variable: H:\Temp
LAN-based SMTP support: N, N, N
NetWare MHS support: N, N, N
Built-in TCP/IP support: Enabled
-WINSOCK version: WinSock 2.0
-WINSOCK path: WSOCK32.DLL
Commandline:
Active -Z options: 32768
PMR variable: (None)
PML variable: (None)
MAI variable: (None)
NB variable: (None)
Autofiltering folders: 3 (3 active, 0 inactive)
Last new mail count: 21
Message size soft limit: 0 bytes
Message size hard limit: 0 bytes
Attachment size soft limit: 0 bytes
Attachment size hard limit: 0 bytes