Send from subaddresses

[infogulch]

You can receive email at subaddresses like username+<tag>@<domain> for any <tag> as described in the docs, but you can't send outbound emails from such subaddresses.

This is problematic because it confuses recipients when they get a Reply from a different email than they put in the To box. Customer support systems in particular seem unusually sensitive to this kind of mismatch where support staff can't find the original ticket because it's associated with a different address.

With Roundcube you can create new Identities and attempt to send from these subaddresses, but the cloudron server rejects it as not allowed.

This limitation has been acknowledged in the past:

@girish said in Bi-Directional 'Catch All' Emails:

Like girish+store1@domain.com, girish+store2@domain.com and so on. This way, they all land in the same mailbox girish@domain.com. ... But this way, you will always reply as girish@domain.com (and FROM will not be girish+store1@domain.com).

This request is to change this behavior to allow sending from subaddresses.

[luckow]

@infogulch oh that's easy. Go to settings-mail-your domain and enable the masquerading

[infogulch]

Oh cool thanks for pointing that out, I hadn't noticed before.

I guess the downsides don't really apply to me right now, but I'm not sure I'd want to enable arbitrary masquerading if there were a bunch of other people on this cloudron.

I still think it's reasonable for users to be able to send with a subaddress of any of their aliases, without opening the floodgates and allowing them to send from any address at all.