Defect: If a plugin crashes for any reason, the mail message is lost

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Amber Clark

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May 23, 2022, 2:19:39 PM5/23/22
to ArGoSoft Products
Good afternoon,

I've been noticing that some e-mail hasn't been getting through. They're not making it to my anti-spam

Here's what the log files say:
[SMTP 005540 23-05-22 02:57:19] Received SMTP connection on 70.89.127.76 (25) from 116.80.57.199 (64054)
[SMTP 005540 23-05-22 02:57:19] Number of current SMTP connections: 1
[SMTP 005540 23-05-22 02:57:19] Loading AfterConnect, AfterMailFrom and AfterRcptTo event handlers event handler for plugin BadHostBlocker/BadHostBlocker.BadHostPlugin
[SMTP 005540 23-05-22 02:57:19] Plugin BadHostBlocker loaded...
[SMTP 005540 23-05-22 02:57:19] 220 mail.clarkzoo.org ArGoSoft Mail Server SMTP Module v.2.0.1.0 at Mon, 23 May 2022 09:57:19 GMT
[SMTP 005540 23-05-22 02:57:19] HELO mail.saisoncard.co.jp
[SMTP 005540 23-05-22 02:57:19] 250 Welcome 116.80.57.199, nice to meet you...
[SMTP 005540 23-05-22 02:57:19] MAIL FROM: <na...@mail.saisoncard.co.jp>
[SMTP 005540 23-05-22 02:57:19] 250 Sender "na...@mail.saisoncard.co.jp" OK...
[SMTP 005540 23-05-22 02:57:20] RCPT TO: <xx...@clarkzoo.org>
[SMTP 005540 23-05-22 02:57:20] 250 Distribution list xx...@clarkzoo.org OK
[SMTP 005540 23-05-22 02:57:20] DATA
[SMTP 005540 23-05-22 02:57:20] 354 Enter mail, end with "." on a line by itself
[SMTP 005540 23-05-22 02:57:20] Received 12662 bytes
[SMTP 005540 23-05-22 02:57:20] DMARC record for domain mail.saisoncard.co.jp is null:
[SMTP 005540 23-05-22 02:57:20] Retrieving TXT records for mail.saisoncard.co.jp using DNS server 75.75.75.75
[SMTP 005540 23-05-22 02:57:21] SPF result: SoftFail
[SMTP 005540 23-05-22 02:57:21] Processing text filters
[SMTP 005540 23-05-22 02:57:21] Loading PostProcess event handler for plugin BadHostBlocker/BadHostBlocker.BadHostPlugin
[SMTP 005540 23-05-22 02:57:21] Plugin BadHostBlocker loaded...
[SMTP 005540 23-05-22 02:57:21] Found PostProcess event handler in BadHostBlocker
[SMTP 005540 23-05-22 02:57:21] Calling PostProcess (Plugins)
[SMTP 005540 23-05-22 02:57:21] 501 Error: The input is not a valid Base-64 string as it contains a non-base 64 character, more than two padding characters, or an illegal character among the padding characters.
[SMTP 005540 23-05-22 02:57:21] SMTP connection 005540 on 70.89.127.76 (25) with 116.80.57.199 (64054) ended
[SMTP 005540 23-05-22 02:57:21] Number of current SMTP connections: 0


When an unhandled exception in a plug-in happens, I would expect the mail server not to drop the mail and deliver the mail regardless.

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