How can we edit the disallowed filename extension list?

mvandemar

• February 21, 2025 21:37

Currently exim is rejecting any emails that have attachments with any of the following extensions:

```
{[.](ad[ep]|ba[st]|chm|cmd|com|cpl|crt|eml|exe|hlp|hta|in[fs]|isp|jse?|lnk|md[be]|ms[cipt]|pcd|pif|reg|scr|sct|shs|url|vb[se]|ws[fhc])\$}}
```
I need to remove .eml from that list, as there's no way for people to forward me bounce messages as attachments in order for me to debug the issues. I tried editing /etc/exim.conf but as soon as I restarted exim the change was overridden. In the exim advanced config editor in whm the only option is to disable blocking by attachments altogether, which obviously should not be required. How can I make this change? 

Thanks.

-Michael

• 

  MinervaH

  • February 21, 2025 22:08

  How to permit .eml email attachments – cPanel

  0
• 

  cPRex Jurassic Moderator

  • February 22, 2025 03:20

  Thanks, MinervaH - customizing that area is the best way to adjust that list.

  0
• 

  azazels

  • May 01, 2025 17:40

  Thanks for the MinervaH link, but there's one more step:
  1. Go to: WHM ▸ Exim Configuration Manager ▸ Basic Editor
  2. Go to the section: Filters
  3. Attachments: Filter messages with dangerous attachments -> change to off
  4. Save

  -1
• 

  mvandemar

  • May 01, 2025 18:59

  Thanks for the MinervaH link, but there's one more step:
  1. Go to: WHM ▸ Exim Configuration Manager ▸ Basic Editor
  2. Go to the section: Filters
  3. Attachments: Filter messages with dangerous attachments -> change to off
  4. Save

  That is neither something you should be doing nor something you should be suggesting that other people do. 

  0

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